If God himself has waited six thousand years for someone to contemplate his works, my book can wait for a hundred.

My greatest desire is that I may perceive the God whom I find everywhere in the external world, in like manner also within and inside myself.

Do we ask what profit the little bird hopes for in singing?

...for a long time I wanted to become a theologian... now, however, behold how through my efforts God is being debated in astronomy.

In theology we must consider the predominance of authority; in philosophy the predominance of reason.

I also ask you my friends not to condemn me entirely to the mill of mathematical calculations, and allow me time for philosophical speculations, my only pleasures.

Now, as God the maker play'd he taught the game to Nature whom he created in his image; taught her the selfsame game which he played to her.