A man's worth is what he is divided by what he thinks he is.

All leaders strive to turn their followers into children.

When we believe ourselves in possession of the only truth, we are likely to be indifferent to common everyday truths.

Perhaps our originality manifests itself most strikingly in what we do with that which we did not originate. To discover something wholly new can be a matter of chance, of idle tinkering, or even of the chronic dissatisfaction of the untalented.

Man's chief goal in life is still to become and stay human, and defend his achievements against the encroachment of nature.

The act of self-denial seems to confer on us the right to be harsh and merciless toward others.

For many people, an excuse is better than an achievement because an achievement, no matter how great, leaves you having to prove yourself again in the future; but an excuse can last for life.