If I have been able to see further, it was only because I stood on the shoulders of giants.

The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'

I do not love to be printed on every occasion, much less to be dunned and teased by foreigners about mathematical things or to be thought by our own people to be trifling away my time about them when I should be about the king's business.

Christ comes as a thief in the night, & it is not for us to know the times & seasons which God hath put into his own breast.

In the absence of any other proof, the thumb alone would convince me of God's existence.

Truth is ever to be found in simplicity, and not in the multiplicity and confusion of things.