History is an orphan. It can speak, but cannot hear. It can give, but cannot take. Its wounds and tragedies can be read and known, but cannot be avoided or cured.

Noble spirits are heterodox.

If you want to be successful, never laugh!

Certainty is the most vivid condition of ignorance and the most necessay condition for knowledge.

The only absurdity in which I find equally immense compassion and morality is Christianity - though the compassion is outlandish and the morality is blemished.

In hell, the Devil is God.

The goal of science is to understand the fundamental reality and the goal of technology is to change that reality.