Every modern war has had its roots in exploitation.

Use your eyes as if tomorrow you would become blind.

The highest result of education is tolerance.

Instead of comparing our lot with that of those who are more fortunate than we are, we should compare it with the lot of the great majority of our fellow men. It then appears that we are among the privileged.

This world is so full of care and sorrow that it is a gracious debt we owe to one another to discover the bright crystals of delight hidden in somber circumstances and irksome tasks.

We should respect all people.

The bulk of the world's knowledge is an imaginary construction.