To know oneself, one should assert oneself.

Know or listen to those who know.

The most effective way to do it, is to do it.

Things do not happen. Things are made to happen.

If you're going through hell, keep going.

What you do today can improve all your tomorrows.

Do not weep do not wax indignant. Understand.

By failing to prepare, you are preparing to fail.

Well done is better than well said.