The scientific theory I like the best is that the rings of Saturn are composed entirely of lost airline baggage.

And the continuity of our science has not been affected by all these turbulent happenings, as the older theories have always been included as limiting cases in the new ones.

There are two objectionable types of believers: those who believe the incredible, and those who believe that 'belief' must be discarded and replaced by 'the scientific method'.

The belief that there is only one truth, and that oneself is in possession of it, is the root of all evil in the world

For all the communities available to us, there is not one I would want to devote myself to, except for the society of the true searchers, which has very few living members at any time.

If God has made the world a perfect mechanism, He has at least conceded so much to our imperfect intellect that in order to predict little parts of it, we need not solve innumerable differential equations, but can use dice with fair success