Do you believe in immortality? No, and one life is enough for me.

But the creative principle resides in mathematics. In a certain sense, therefore, I hold true that pure thought can grasp reality, as the ancients dreamed.

Out of the clutter find Simplicity

All religions, arts and sciences are branches of the same tree. All these aspirations are directed toward ennobling man's life, lifting it from the sphere of mere physical existence and leading the individual towards freedom.

Remember today, for it is the beginning of always. Today marks the start of a brave new future filled with all your dreams can hold. Think truly to the future and make those dreams come true.

The only mistake in life is the lesson not learned.

Science can only ascertain what is, but not what should be, and outside of its domain value judgements of all kinds remain necessary.