Choose the life that is most useful， and habit will make it the most agreeable.

A man is the sum of his misfortunes. One day you'd think misfortune would get tired but then time is your misfortune.

I don’t let fear stop me.

In our reasonings concerning matter of fact， there are all imaginable degrees of assurance， from the highest certainty to the lowest species of moral evidence.

The only way to do great work is to love what you do.

We must embrace change and challenge ourselves to think differently.

不随客户需求而发展的企业很快就会被淘汰。