Know or listen to those who know.

Do not weep do not wax indignant. Understand.

If you're going through hell, keep going.

Quality is not an act, it is a habit.

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

I can, therefore I am.

Begin to be now what you will be hereafter.

Well done is better than well said.

The wise does at once what the fool does at last.