Dear Lord, what a madhouse the world is!

Happy people have no history.

If once we admit, be it for a single hour or in a single instance, that there can be anything more important than compassion for a fellow human being, then there is no crime against man that we cannot commit with an easy conscience.

The great tragedy of atheists is that they walk through this world and have no one to thank.

Everything depends on upbringing.

Indeed, ask every man separately whether he thinks it laudable and worthy of a man of this age to hold a position from which he receives a salary disproportionate to his work; to take from the people--often in poverty--taxes to be spent on constructing cannon, torpedoes, and other instruments of butchery, so as to make war on people with whom we wish to be at peace, and who feel the same wish in regard to us; or to receive a salary for devoting one's whole life to constructing these instruments of butchery, or to preparing oneself and others for the work of murder.

I must have physical exercise, or my temper'll certainly be ruined.