Fear and stupidity has always been the basis of most human actions.

The meaning of things lies not in the things themselves, but in our attitude towards them.

We used to think that if we knew one, we knew two, because one and one are two. We are finding that we must learn a great deal more about 'and'.

In any attempt to bridge the domains of experience belonging to the spiritual and the physical sides of our nature, time occupies the key position.

The wise man does at once what the fool does finally.

The principles of logic and mathematics are true simply because we never allow them to be anything else.

In the end, it's not the years in your life that count. It's the life in your years.