Pros are just amateurs who know how to gracefully recover from their mistakes.

The past explains the present - that is the fundamental premise of evolutionary psychology.

And we also suck in messages from everything from the television, to advertising, to marketing, etc. These are hugely powerful forces that define what we want and how we view ourselves. When we're told that banking is a very respectable profession, a lot of us want to go into banking. When banking is no longer so respectable, we lose interest in banking. We are highly open to suggestion.

Success is not final, failure is not fatal: it is the courage to continue that counts.

在数学中，最简单的解释往往是最深刻的。