If you can dream it, you can do it.
Well done is better than well said.
Always desire to learn something useful.
It's always too early to quit.
The most effective way to do it, is to do it.
If you're going through hell, keep going.
Problems are not stop signs, they are guidelines.
Know or listen to those who know.
Never complain and never explain.
Either you run the day or the day runs you.
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.