Time erodes all such beauty, but what it cannot diminish… is the wonderful workings of your mind. Your humor, your kindness… and your moral courage.

Spend as much time crafting the subject line of an email as the message itself because the subject line is often the only thing people read.

"The universe is full of magical things patiently waiting for our wits to grow sharper."

There is nothing which I dread so much as a division of the republic into two great parties, each arranged under its leader, and concerting measures in opposition to each other.

A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.

Profit and sustainability must swim side by side, or both will sink.