Gratitude will unlock all other virtues and is something you can get better at

The beauty of mathematics lies in its simplicity and depth.

I think that the most important thing in life is to be true to yourself.

如果在一个游戏中，获胜变得过于重要，那么我们可以修改游戏规则以便从中获得更多乐趣。而修改规则本身就可以成为一个新的游戏。