It's always too early to quit.
Know or listen to those who know.
If you think you can do it, you can.
Either you run the day or the day runs you.
To be a good loser is to learn how to win.
The dog that trots about finds a bone.
Things do not happen. Things are made to happen.
If you can dream it, you can do it.
Begin to be now what you will be hereafter.
Well done is better than well said.
I shall endeavour still further to prosecute this inquiry, an inquiry I trust not merely speculative, but of sufficient moment to inspire the pleasing hope of its becoming essentially beneficial to mankind.