Wisdom is the daughter of experience.

Wood feeds the fire which burns it.

You can have no dominion greater or less than that over yourself.

You do ill if you praise, but worse if you censure, what you do not understand.

You don’t get into trouble because of the things you don’t know. It is the things you don’t know you don’t know that really get you into a mess.

You grow in reputation like bread in the hands of a child.

You should prefer a good scientist without literary abilities than a literate one without scientific skills.

Your brain is much better than you think; just use it!