The wise does at once what the fool does at last.
Always desire to learn something useful.
Never complain and never explain.
Know or listen to those who know.
If you've got a talent, protect it.
If you can dream it, you can do it.
It's always too early to quit.
After a storm comes a calm.
By failing to prepare, you are preparing to fail.
Be gentle to all and stern with yourself.
God sleeps in the minerals, awakens in plants, walks in animals, and thinks in man.
Science already contained all that was necessary, if you just brought it out.