打量别人的弱点很容易。打量自己的弱点很难，但却会给你更高的回报。

Reason obeys itself; and ignorance submits to whatever is dictated to it.

做出伟大工作的唯一途径是热爱你所做的事情。

'Jeff, what does Day 2 look like?' 'Day 2 is stasis. Followed by irrelevance. Followed by excruciating, painful decline. Followed by death. And that is why it is always Day 1.' To be sure, this kind of decline would happen in extreme slow motion. An established company might harvest Day 2 for decades, but the final result would still come.

Freedom is not a condition, but an attitude.

译文：爽口的美食吃多了容易生病，高兴的事过头容易生出祸殃。赏析：任何看似令人爽口的食物吃多了，都会伤害身体，更何况那些垃圾食品呢。人在高兴时，容易得意忘形，说话做事都有失妥当。