“I have resolved to demonstrate by a certain and undoubted course of argument, or to deduce from the very condition of human nature, not what is new and unheard of, but only such things as agree best with practice.”

Section 1 : Give Responsibility to Vitally Necessary Work!
Variant translation: What is new in work democracy is: that for the first time in the history of sociology a possible future order of human society is deduced not from ideologies or from conditions yet to be created, but from processes which are naturally given and which have always been in operation. What is new in it is the renunciation and rejection of any kind of politics and demagogy. New is that, instead of the working masses of people being relieved of social responsibility, they are being burdened with it. Further, that the work democrats have no political ambitions nor are allowed to develop any. Further, that it consciously develops formal democracy — which means merely the voting for ideological representatives without any further responsibility on the part of the voter — into genuine, factual and practical democracy on an international scale; a democracy which is borne, in progressive organic development, by the functions of love, work and knowledge.
The Mass Psychology of Fascism (1933), Ch. 10 : Work Democracy
Context: What is new in work democracy is: that for the first time in the history of sociology, a possible future regulation of human society is derived not from ideologies or conditions that must be created, but from natural processes that have been present and have been developing from the very beginning. Work-democratic "politics" is distinguished by the fact that it rejects all politics and demagogism. Masses of working men and women will not be relieved of their social responsibility. They will be burdened with it. Work-democrats have no ambition to be political führers, nor will they ever be permitted to develop such an ambition...

Source: Tess of the D'Urbervilles

Letter to Demetrias

Novum Organum (1620)

Letter to Horace Hutchinson, 7 January, 1919.
Letters

On Contradiction (1937)
Original: (zh-CN) 炸弹在未爆炸的时候，是矛盾物因一定条件共居于一个统一体中的时候。待至新的条件（发火）出现，才发生了爆炸。自然界中一切到了最后要采取外部冲突形式去解决旧矛盾产生新事物的现象，都有与此相仿佛的情形。

Source: Greybeard (1964), Chapter 6 “London” (p. 170)

Source: Mathematical Thought from Ancient to Modern Times (1972), p. 580
Context: Fermat knew that under reflection light takes the path requiring least time and, convinced that nature does indeed act simply and economically, affirmed in letters of 1657 and 1662 his Principle of Least Time, which states that light always takes the path requiring least time. He had doubted the correctness of the law of refraction of light but when he found in 1661 that he could deduce it from his Principle, he not only resolved his doubts about the law but felt all the more certain that his Principle was correct.... Huygens, who had at first objected to Fermat's Principle, showed that it does hold for the propagation of light in media with variable indices of refraction. Even Newton's first law of motion, which states that the straight line or shortest distance is the natural motion of a body, showed nature's desire to economize. These examples suggested that there might be a more general principle. The search for such a principle was undertaken by Maupertuis.

Quoted from F. Capra, The Tao of Physics.