年轻时，你以为长大后就会幸福。但长大后，你意识到年轻时的自己才是幸福的。

拓扑学是对图形在任何变形下保持不变的性质的研究。

所有人都是我们的导师，恶人通过他们的恶行说'不要靠近我'。善人总是善良的，所以所有人都像导师一样对我们。

To love is to risk not being loved in return. To hope is to risk pain. To try is to risk failure, but risk must be taken because the greatest hazard in life is to risk nothing.

Every saint has a past, and every sinner has a future.