Schopenhauer remarked that every country derides the customs and habits of other countries, and every country is correct: this is a principle with wide application.
Operations of thought are like cavalry charges in a battle — they are strictly limited in number, require fresh horses, and must only be made at decisive moments.
Those who cannot judge what to believe must resort to whom.
Thinking, like plumbing, is something we rarely do for ourselves; but no one imagines that he does his own plumbing.
If your thoughts seem banal to you, it may be because you have lived with them for a long time and grown used to them, or it may be because they are.
Monotheism dies that monism may live.
Just as there are ideas so mad that you must be clever to believe them, so there is behavior so weird that you must be clever to engage in it.
The speech-censors make their presence known; the thought-censors censor first the thought that they exist.
A man’s belief system is a miracle of construction, apparently rickety and jerry-built, yet sturdy enough to withstand the introduction of a new fact or idea without being altered or disturbed.
Hidden depths are only unrecorded thoughts, which have ceased to exist.
Any remotely promising new idea will promptly be seized on to explain everything.