“The fact that altruism has been evolved by the cooperation of individuals with each other and against others is a significant fact in the analysis and understanding of the ethical phenomena of the earth. To this fact is due the restricted and illogical character of all altruism.”
"Egoism and Altruism", pp. 251–252
The Universal Kinship (1906), The Ethical Kinship
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J. Howard Moore 183
1862–1916Related quotes

“The root of happiness is altruism — the wish to be of service to others.”
The Dalai Lama at Harvard: Lectures on the Buddhist Path to Peace (1988) by Jeffrey Hopkins.
Context: What is the Great Vehicle? What is the mode of procedure of the Bodhisattva path? We begin with the topic of the altruistic intention to achieve enlightenment in which one values others more than oneself. The Great Vehicle path requires the vast motivation of a Bodhisattva, who, not seeking just his or her welfare, takes on the burden of bringing about the welfare of all sentient beings. When a person generate this attitude, they enter within the Great Vehicle, and as long as it has not been generated, one cannot be counted among those of the Great Vehicle. This attitude really has great power; it, of course, is helpful for people practicing religion, but it also is helpful for those who are just concerned with the affairs of this lifetime. The root of happiness is altruism — the wish to be of service to others.

Author, Third Day. Change of Position<!--p.153 [190]-->
Dialogues and Mathematical Demonstrations Concerning Two New Sciences (1638)
Context: It has been observed that missiles and projectiles describe a curved path of some sort; however no one has pointed out the fact that this path is a parabola. But this and other facts, not few in number or less worth knowing, I have succeeded in proving; and what I consider more important, there have been opened up to this vast and most excellent science, of which my work is merely the beginning, ways and means by which other minds more acute than mine will explore its remote corners.

Source: Kritik der zynischen Vernunft [Critique of Cynical Reason] (1983), p. 45
“Personal beliefs are unarguable, even if the other side has all the facts.”
Nell Latimer in Ch. 6 : nell latimer’s book, p. 51
The Visitor (2002)

" The Influence Of Women On The Progress Of Knowledge http://www.public.coe.edu/~theller/soj/u-rel/buckle.html". Lecture given at the Royal Institution 19 March 1858. In: The Miscellaneous and Posthumous Works of Henry Thomas Buckle (1872)