译文：月亮过了十五后，就逐渐不明亮了，人到了中年之后，做什么事都难以有大作为。赏析：青少年是人生最美好的时期，这个时期精力最旺盛，记忆力最强，也是人生最该努力奋斗的时候。

The successful trader has to fight two powerful enemies: the market and himself.

On vacation go to the most remote place on your itinerary first， bypassing the cities. You‘ll maximize the shock of otherness in the remote， and then later you’ll welcome the familiar comforts of a city on the way back.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.