Youth is not a time of life; it is a state of mind; it is not a matter of rosy cheeks, red lips and supple knees; it is a matter of the will, a quality of the imagination, a vigor of the emotions; it is the freshness of the deep springs of life.

I think if you're an entrepreneur, the most important thing is to focus on your customers, your product, your team, and not on your competition.

"The cost of oblivious daydreaming was always this moment of return, the realignment with what had been before and now seemed a little worse."

检验假设有效性的唯一相关标准是其预测与经验的比较。

Maybe I was afraid of change, are you?

只要你曾经在一只天鹅蛋里待过，就算你是生在养鸭场里也没有什么关系。

没有缺乏机会以你所爱为生；只有缺乏决心使之实现。

如果你没有偶尔失败，说明你不够努力。