If you have made a mistake, cut your losses as quickly as possible.

Only as you do know yourself can your brain serve you as a sharp and efficient tool. Know your own failings, passions, and prejudices so you can separate them from what you see.

Approach each new problem not with a view of finding what you hope will be there, but to get the truth, the realities that must be grappled with. You may not like what you find. In that case you are entitled to try to change it. But do not deceive

Old age is always fifteen years older than I am.

To me, old age is always 15 years older than I am.