“Each of you possesses the most powerful, dangerous and subversive trait that natural selection has ever devised. It’s a piece of neural audio technology for rewiring other people’s minds. I’m talking about your language.”

Good judgment comes from experience, and often experience comes from bad judgment.

The happiest people are those who do the most for others.

Ethical religion can be real only to those who are engaged in ceaseless efforts at moral improvement.

Persistence is very important. You should not give up unless you are forced to give up.

What we have once enjoyed we can never lose. All that we love deeply becomes a part of us.

Lots of people know what to do, but few actually do what they know.