你送给我桃子，我就回报给你李子。意思是做人要知恩图报，不能忘恩负义。也比喻礼尚往来，相互赠送礼物。

To be happy is only to have freed one's soul from the unrest of unhappiness.

The past is a story we tell ourselves.

What's terrible is to pretend that second-rate is first-rate. To pretend that you don't need love when you do; or you like your work when you know quite well you're capable of better.

在竞争激烈的市场中保持领先的关键是创新。