There is no scorn more profound, or on the whole more justifiable, than that of the men who make for the men who explain.

A man who sets out to justify his existence and his activities has to distinguish two different questions. The first is whether the work which he does is worth doing; and the second is why he does it (whatever its value may be).

I propose to put forward an apology for mathematics; and I may be told that it needs none, since there are now few studies more generally recognized, for good reasons or bad, as profitable and praiseworthy.

The fact is there are few more popular subjects than mathematics. Most people have some appreciation of mathematics, just as most people can enjoy a pleasant tune.

They [formulae 1.10 - 1.12 of Ramanujan] must be true because, if they were not true, no one would have had the imagination to invent them.

The mathematician's patterns, like the painter's or the poet's, must be beautiful.

Asked if he believes in one G-d, a mathematician answered: "Yes, up to isomorphism".