My first act of free will shall be to believe in free will.

The greatest weapon against stress is our ability to choose one thought over another.

Man's chief difference from the brutes lies in the exuberant excess of his subjective propensities. Prune his extravagance, sober him, and you undo him.

The intellectual life of man consists almost wholly in his substitution of conceptual order for the perceptual order in which his experience originally comes.

Begin to be now what you will be hereafter.

First... a new theory is attacked as absurd; then it is admitted to be true, but obvious and insignificant; finally it is seen to be so important that its adversaries claim that they themselves discovered it.

The prescription is that the subject must be made to show new aspects of itself; to prompt new questions; in a word, to change. From an unchanging subject the attention inevitably wanders away.