The unrest which keeps the never stopping clock of metaphysics going is the thought that the nonexistence of this world is just as possible as its existence.

Ingenuity in meeting and pursuing the pupil, that tact for the concrete situation, though they are the alpha and omega of the teacher's art, are things to which psychology cannot help us in the least.

To suggest personal will and effort to one all sicklied o'er with the sense of irremediable impotence is to suggest the most impossible of things. What he craves is to be consoled in his very powerlessness, to feel that the spirit of the universe recognizes and secures him, all decaying and failing as he is.

The word 'cause' is an altar to an unknown god.

We are stereotyped creatures, imitators and copiers of our past selves.

Science herself consults her heart when she lays it down that the infinite ascertainment of fact and correction of false belief are the supreme goods for man.

Give your dreams all you've got, and you'll be amazed at the energy that comes out of you.