No great discovery was ever made without a bold guess

No great discovery was ever made without a bold guess.

If I have ever made any valuable discoveries, it has been due more to patient attention, than to any other talent

The most exciting phrase to hear in science, the one that heralds the most discoveries, is not 'Eureka!' (I found it!) 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.