“1. There is at present in the material world a universal tendency to the dissipation of mechanical energy.
2. Any restoration of mechanical energy, without more than an equivalent of dissipation, is impossible in inanimate material processes, and is probably never effected by means of organized matter, either endowed with vegetable life or subjected to the will of an animated creature.
3. Within a finite period of time past, the earth must have been, and within a finite period of time to come the earth must again be, unfit for the habitation of man as at present constituted, unless operations have been, or are to be performed, which are impossible under the laws to which the known operations going on at present in the material world are subject.”

— William Thomson

Mathematical and Physical Papers, Vol.1 http://books.google.com/books?id=nWMSAAAAIAAJ p. 512 (1882) "On a Universal Tendency in Nature to the Dissipation of Mechanical Energy" originally from the Proceedings of the Royal Society of Edinburgh for April 19, 1852, also Philosophical Magazine, Oct. 1852
Thermodynamics quotes

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William Thomson 18

British physicist and engineer 1824–1907

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“It is impossible by means of inanimate material agency, to derive mechanical effect from any portion of matter by cooling it below the temperature of the coldest of the surrounding objects. [Footnote: ] If this axiom be denied for all temperatures, it would have to be admitted that a self-acting machine might be set to work and produce mechanical effect by cooling the sea or earth, with no limit but the total loss of heat from the earth and sea, or in reality, from the whole material world.”

William Thomson (1824–1907) British physicist and engineer

Mathematical and Physical Papers, Vol.1 http://books.google.com/books?id=nWMSAAAAIAAJ p. 179 (1882) "On the Dynamical Theory of Heat with Numerical Results Deduced from Mr Joule's Equivalent of a Thermal Unit and M. Regnault's Observations on Steam" originally from Transactions of the Royal Society of Edinburgh, March, 1851 and Philosophical Magazine iv, 1852
Thermodynamics quotes

“It should be borne in mind that electrical energy obtained by harnessing a waterfall is probably fifty times more effective than fuel energy. Since this is the most perfect way of rendering the sun's energy available, the direction of the future material development of man is clearly indicated.”

Nikola Tesla (1856–1943) Serbian American inventor

Source: A Means for Furthering Peace (1905)

“Under the roof of one controversial assumption about physics, we discuss five big questions that can be addressed using concepts from a modern understanding of digital informational processes. The assumption is called finite nature. The digital mechanics model is obtained by applying the assumption to physics. The questions are as follows: 1. What is the origin of spin? 2. Why are there symmetries and CPT (charge conjugation, parity, and time reversal)? 3. What is the origin of length? 4. What does a process model of motion tell us? 5. Can the finite nature assumption account for the efficacy of quantum mechanics?”

Edward Fredkin (1934) American physicist and computer scientist, a pioneer of digital physics

Five big questions with pretty simple answers, IBM Journal of Research and Development, 48, 1, January 2004, 31–45 https://ieeexplore.ieee.org/abstract/document/5388918/,

“The writer must be four people: 1) The nut, the obsede 2) The moron 3) The stylist 4) The critic. 1 supplies the material; 2 lets it come out; 3 is taste; 4 is intelligence.”

Susan Sontag (1933–2004) American writer and filmmaker, professor, and activist

“The field of the finite is all that we can see, hear, touch, remember, and describe. This field is basically that which is manifest, or tangible. The essential quality of the infinite, by contrast, is its subtlety, its intangibility. This quality is conveyed in the word spirit, whose root meaning is "wind, or breath." This suggests an invisible but pervasive energy, to which the manifest world of the finite responds. This energy, or spirit, infuses all living beings, and without it any organism must fall apart into its constituent elements. That which is truly alive in the living being is this energy of spirit, and this is never born and never dies.”

David Bohm (1917–1992) American theoretical physicist

As quoted in Infinite Potential: The Life and Times of David Bohm by F. David Peat https://books.google.com/books?id=pobZMUmZbAEC&pg=PA322&dq=The+field+of+the+finite+is+all+that+we+can+see,+hear,+touch,+remember,+and+describe.+This+field+is+basically+that+which+is+manifest,+or+tangible.+The+essential+quality+of+the+infinite,+by+contrast,+is+its+subtlety,+its+intangibility.+This+quality+is+conveyed+in+the+word+spirit,+whose+root+meaning+is+%22wind,+or+breath.%22+This+suggests+an+invisible+but+pervasive+energy,+to+which+the+manifest+world+of+the+finite+responds.+This+energy,+or+spirit,+infuses+all+living+beings,+and+without+it+any+organism+must+fall+apart+into+its+constituent+elements.+That+which+is+truly+alive+in+the+living+being+is+this+energy+of+spirit,+and+this+is+never+born+and+never+dies&hl=en&sa=X&ved=0ahUKEwjotZe8m6_TAhWs5oMKHbA4CkMQ6AEIIzAA#v=onepage&q=The%20field%20of%20the%20finite%20is%20all%20that%20we%20can%20see%2C%20hear%2C%20touch%2C%20remember%2C%20and%20describe.%20This%20field%20is%20basically%20that%20which%20is%20manifest%2C%20or%20tangible.%20The%20essential%20quality%20of%20the%20infinite%2C%20by%20contrast%2C%20is%20its%20subtlety%2C%20its%20intangibility.%20This%20quality%20is%20conveyed%20in%20the%20word%20spirit%2C%20whose%20root%20meaning%20is%20%22wind%2C%20or%20breath.%22%20This%20suggests%20an%20invisible%20but%20pervasive%20energy%2C%20to%20which%20the%20manifest%20world%20of%20the%20finite%20responds.%20This%20energy%2C%20or%20spirit%2C%20infuses%20all%20living%20beings%2C%20and%20without%20it%20any%20organism%20must%20fall%20apart%20into%20its%20constituent%20elements.%20That%20which%20is%20truly%20alive%20in%20the%20living%20being%20is%20this%20energy%20of%20spirit%2C%20and%20this%20is%20never%20born%20and%20never%20dies&f=false (1997) page 322, .

“Are we wasting our lives? By that word “wasting” we mean dissipating our energy in various ways, dissipating it in specialized professions.”

Jiddu Krishnamurti (1895–1986) Indian spiritual philosopher

Source: 1980s, That Benediction is Where You Are (1985), p. 63
Context: Are we wasting our lives? By that word “wasting” we mean dissipating our energy in various ways, dissipating it in specialized professions. Are we wasting our whole existence, our life? If you are rich, you may say, “Yes, I have accumulated a lot of money, it has been a great pleasure.” Or if you have a certain talent, that talent is a danger to a religious life. Talent is a gift, a faculty, an aptitude in a particular direction, which is specialization. Specialization is a fragmentary process. So you must ask yourself whether you are wasting your life. You may be rich, you may have all kinds of faculties, you may be a specialist, a great scientist or a businessman, but at the end of your life has all that been a waste? All the travail, all the sorrow, all the tremendous anxiety, insecurity, the foolish illusions that man has collected, all his gods, all his saints and so on — have all that been a waste? You may have power, position, but at the end of it — what? Please, this is a serious question that you must ask yourself. Another cannot answer this question for you.