The human heart refuses To believe in a universe Without a purpose.

The existence of the Bible is the greatest blessing which humanity ever experienced.

The question is not so much whether there is life on Mars as whether it will continue to be possible to live on Earth

What are the aims which are at the same time duties? They are perfecting of ourselves, the happiness of others.

Man's greatest concern is to know how he shall properly fill his place in the universe and correctly understand what he must be in order to be a man.

It is through good education that all the good in the world arises.

Freedom is the alone unoriginated birthright of man, and belongs to him by force of his humanity.