Well done is better than well said.
Problems are not stop signs, they are guidelines.
I can, therefore I am.
Things do not happen. Things are made to happen.
Always desire to learn something useful.
The wise does at once what the fool does at last.
Begin to be now what you will be hereafter.
Either you run the day or the day runs you.
Leap, and the net will appear.
It's always too early to quit.
He who devotes sixteen hours a day to hard study may become at sixty as wise as he thought himself at twenty.