We want all our friends to tell us our bad qualities; it is only the particular ass that does so whom we can't tolerate.

Belief is desecrated when given to unproved and unquestioned statements for the solace and private pleasure of the believer . . . It is wrong always, everywhere, and for every one, to believe anything upon insufficient evidence.

Footnotes -- little dogs yapping at the heels of the text

Each of us is in fact what he is almost exclusively by virtue of his imitative-ness.

The history of philosophy is to a great extent that of a certain clash of human temperaments.

I wished by treating Psychology like a natural science, to help her become one.

Man can alter his life by altering his thinking.