Dilettantes appreciate the work, professors the master at the same time.

I've never been on good terms with God, but now I'm becoming His intimate, for He is truly absolute and extremely legitimate.

The cradle of the future is the grave of the past.

How great seems human progress when we consider where it began, and how insignificant, when we contemplate the goals for which itstrives.

Morality, a muzzle for the will; logic, a climbing iron for the mind.

When we interpret nature, we refer phenomena that are rarely entirely unintelligible back to something that actually exists, but is equally unintelligible.

It is good insofar as it is not evil.