A [psychological] difficulty is not an impossibility.

All desirable things... are desirable either for the pleasure inherent in themselves, or as a means to the promotion of pleasure and the prevention of pain.

The disease which inflicts bureaucracy and what they usually die from is routine.

Complete liberty of contradicting and disproving our opinion, is the very condition which justifies us in assuming its truth for purposes of action.

A person should be free to do as he likes in his own concerns; but he ought not to be free to do as he likes in acting for another, under the pretext that the affairs of the other are his own affairs.

Language is the light of the mind

Next to selfishness the principal cause which makes life unsatisfactory is want of mental cultivation.