To know oneself, one should assert oneself.
The most effective way to do it, is to do it.
Things do not happen. Things are made to happen.
What you do today can improve all your tomorrows.
It's always too early to quit.
Either you run the day or the day runs you.
Who seeks shall find.
Begin to be now what you will be hereafter.
Be gentle to all and stern with yourself.
Know or listen to those who know.
A teacher enlarges people in all sorts of ways besides just his subject matter.
Most things break, including hearts. The lessons of life amount not to wisdom, but to scar tissue and callus.