A man at philosophy is like a cat up a tree: he can think his way into a lot more trouble than he can think his way out of.
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.
There are people who understand the power of speech, and people who oppose restrictions on speech, but rarely the same people.
Sanity is less a particular outlook than a practiced aversion to the multifarious forms of crazy.
Thought-criminals, like regular ones, would escape punishment more often if they could manage not to boast of their exploits.
Humans perceive nothing as accidental, and this is no accident.
We read, and imagine we can write; and write, and imagine we can think.
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.
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.