Theorems are the permanent literature of mathematics.
I don’t believe in regrets. Everything happens for a reason.
I'm not going to change who I am just because you don't like it.
"I'm a work in progress."
Quality starts from the seed; only the best can grow into the finest fruits.
The stranger is close to us, insofar as we feel between him and ourselves common features of a national, social, occupational, or generally human, nature. He is far from us, insofar as these common features extend beyond him or us, and connect us only because they connect a great many people.