Physics is unable to stand on its own feet, but needs a metaphysics on which to support itself, whatever fine airs it may assume towards the latter.

Our moral virtues benefit mainly other people; intellectual virtues, on the other hand, benefit primarily ourselves; therefore the former make us universally popular, the latter unpopular.

To find out your real opinion of someone, judge the impression you have when you first see a letter from them.

Faith is like love, it cannot be forced. Therefore it is a dangerous operation if an attempt be made to introduce or bind it by state regulations; for, as the attempt to force love begets hatred, so also to compel religious belief produces rank unbelief.

You must treat a work of art like a great man: stand before it and wait patiently till it deigns to speak.

It is only in the microscope that our life looks so big.

All wanting comes from need, therefore from lack, therefore from suffering.