No problem can withstand the assault of sustained thinking.
The more a man knows, the less he talks.
I would rather obey a fine lion, much stronger than myself, than two hundred rats of my own species.
The history of human opinion is scarcely anything more than the history of human errors.
But in this country it is necessary, now and then, to put one admiral to death in order to inspire the others to fight.
The discovery of what is true and the practice of that which is good are the two most important aims of philosophy.