To know oneself, one should assert oneself.
The most effective way to do it, is to do it.
By failing to prepare, you are preparing to fail.
Problems are not stop signs, they are guidelines.
Things do not happen. Things are made to happen.
Know or listen to those who know.
I can, therefore I am.
Who seeks shall find.
After a storm comes a calm.
Be gentle to all and stern with yourself.
Thought is the original source of all wealth, all success, all material gain, all great discoveries and inventions, and of all achievement.
Do not trust to the cheering, for those persons would shout as much if you and I were going to be hanged.