You can lead a boy to college, but you cannot make him think.
Love grows by giving. The love we give away is the only love we keep. The only way to retain love is to give it away.
The friend is the man who knows all about you, and still likes you.
As a rule, the man who can do all things equally well is a very mediocre individual.
The wise way to benefit humanity is to attend to your own affairs, and thus give other people an opportunity to look after theirs.
The recipe for perpetual ignorance is: Be satisfied with your opinions and content with your knowledge.