Mathematics is not just a language. Mathematics is a language plus reasoning.

If we will only allow that, as we progress, we remain unsure, we will leave opportunities for alternatives.

Have no respect whatsoever for authority; forget who said it and instead look what he starts with, where he ends up, and ask yourself, "Is it reasonable?"

If you have any talent, or any occupation that delights you, do it, and do it to the hilt. Don't ask why, or what difficulties you may get into.

What Do You Care What Other People Think?

It is not unscientific to make a guess, although many people who are not in science think it is.

Some people say, "How can you live without knowing?" I do not know what they mean. I always live without knowing. That is easy. How you get to know is what I want to know.