It is fair to despise a cowardly man, but the female sex is strongest when it's weak.

Reason and the ability to use it are two separate skills.

Uneducated people are unfortunate in that they do grasp complex issues, educated people, on the other hand, often do not understand simplicity, which is a far greater misfortune.

It is not a matter of desire, but of coercion and duty.

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

Whoever places his trust into a system will soon be without a home. While you are building your third story, the two lower ones have already been dismantled.

Metaphysics must be based on what exists, for it has the task of explicating it.