The secret of joy in work is contained in one word – excellence. To know how to do something well is to enjoy it.

We are communal histories, communal books. We are not owned or monogamous in our taste or experience.

The biggest risk is not taking any risk.

The act of writing requires a constant plunging back into the shadow of the past where time hovers ghostlike.

【译文】 樊迟问仁，孔子说：“对人慈爱。”问智，孔子说：“对人了解。”樊迟不理解。孔子说：“以正压邪，能使邪者正。”

The most successful companies are those that solve real problems for real people.

In a world filled with hate, we must still dare to hope. In a world filled with anger, we must still dare to comfort. In a world filled with despair, we must still dare to dream. In a world filled with distrust, we must still dare to believe.

I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.