“One is where one thinks.”

Source: The Amazing Maurice and His Educated Rodents

Es ist unendlich schwer, zu wissen, wenn und wo man bleiben soll, und Tausenden für einen ist das Ziel ihres Nachdenkens die Stelle, wo sie des Nachdenkens müde geworden.
Letter to Moses Mendelssohn, January 9, 1771

The Economic Tendency of Freethought (1890)
Context: I think it can be shown that the law makes ten criminals where it restrains one. On that basis it would not, as a matter of policy merely, be an economical institution.

415
Leaves of Morya’s Garden: Book One (The Call) (1924)

Source: Infamous

Listen, Little Man! (1948)
Context: You are different from the really great man in only one thing: The great man, at one time, also was a very little man, but he developed one important ability: he learned to see where he was small in his thinking, and actions. Under the pressure of some task which was dear to him he learned better and better to sense the threat that comes from his smallness and pettiness. The great man, then, knows when and in what he is a little man.