I assert that, in any particular natural science, one encounters genuine scientific substance only to the extent that mathematics is present.

Give me matter, and I will construct a world out of it!

Even philosophers will praise war as ennobling mankind, forgetting the Greek who said: 'War is bad in that it begets more evil than it kills.'

God, freedom, and immortality are untenable in the light of pure reason.

If a man is often the subject of conversation he soon becomes the subject of criticism.

It is not God's will merely that we should be happy, but that we should make ourselves happy

God put a secret art into the forces of Nature so as to enable it to fashion itself out of chaos into a perfect world system.