“A little reflection will enable any person to detect in himself that setness in trifles which is the result of the unwatched instinct of self-will and to establish over himself a jealous guardianship.”

Space, Time and Gravitation (1920)
Context: It is of interest to inquire what happens when the aviator's speed... approximates to the velocity of light. Lengths in the direction of flight become smaller and smaller, until for the speed of light they shrink to zero. The aviator and the objects accompanying him shrink to two dimensions. We are saved the difficulty of imagining how the processes of life can go on in two dimensions, because nothing goes on. Time is arrested altogether. This is the description according to the terrestrial observer. The aviator himself detects nothing unusual; he does not perceive that he has stopped moving. He is merely waiting for the next instant to come before making the next movement; and the mere fact that time is arrested means that he does not perceive that the next instant is a long time coming.<!--p.26

Source: Fear and Trembling

Source: The False Principle of our Education (1842), p. 23

August 16, 1773
The Journal of a Tour to the Hebrides (1785)

Source: The Human Side of Enterprise (1960), p. 220 (in 2006 edition)

Source: Morals and Dogma of the Ancient and Accepted Scottish Rite of Freemasonry (1871), Ch. II : The Fellow-Craft, p. 44
Context: From the political point of view there is but a single principle,— the sovereignty of man over himself. This sovereignty of one's self over one's self is called Liberty. Where two or several of these sovereignties associate, the State begins. But in this association there is no abdication. Each sovereignty parts with a certain portion of itself to form the common right. That portion is the same for all. There is equal contribution by all to the joint sovereignty. This identity of concession which each makes to all, is Equality. The common right is nothing more or less than the protection of all, pouring its rays on each. This protection of each by all, is Fraternity.
Liberty is the summit, Equality the base. Equality is not all vegetation on a level, a society of big spears of grass and stunted oaks, a neighborhood of jealousies, emasculating each other. It is, civilly, all aptitudes having equal opportunity; politically, all votes having equal weight; religiously, all consciences having equal rights.

The Dignity of Human Nature (1754)

Tradition and the Individual Talent (1919)