It is true that the grasping of truth is not possible without empirical basis. However, the deeper we penetrate and the more extensive and embracing our theories become the less empirical knowledge is needed to determine those theories.

The wing structure of the hornet, in relation to its weight, is not suitable for flight, but he does not know this and flies anyway.

Infinite striving to be the best is man's duty; It is its own reward. Everything else is in god's hands. It's not that I'm so smart, it's just that I stay with problems longer.

What really interests me is whether God had any choice in the creation of the World.

Personally, I experience the greatest degree of pleasure in having contact with works of art. They furnish me with happy feelings of an intensity that I cannot derive from other sources.

He who can no longer pause to wonder and stand rapt in awe, is as good as dead; his eyes are closed.

You cannot simultaneously prevent and prepare for war.