Older men start wars, but younger men fight them.

Man can find meaning in life only through devoting himself to society.

God did not create evil. Just as darkness is the absence of light, evil is the absence of God.

Formerly, people thought that if matter disappeared from the universe, space and time would remain. Relativity declares that space and time would disappear with matter.

The most important human endeavor is the striving for morality in our actions. Our inner balance and even our very existence depend on it. Only morality in our actions can give beauty and dignity to life.

I thought of that while riding my bicycle.

One must not attempt to justify them, but rather to sense their nature simply and clearly.