The method of psychology must be objective, even when studying subjective phenomena.

The more we know, the less we understand.

I do not know what I may appear to the world， but to myself I seem to have been only like a boy playing on the sea-shore， and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary， whilst the great ocean of truth lay all undiscovered before me.

每个生物都在为生存而斗争。

你想要的一切都在恐惧的另一边。

无知比知识更容易出现。

唯一真正的监狱是恐惧，唯一真正的自由是从恐惧中解脱。