I've learned that you can't control everything, but you can control how you react to it.

The best and most beautiful things in the world cannot be seen or even touched - they must be felt with the heart.

The beauty of mathematics only shows itself to more patient followers.

礼、义、廉、耻是维系国家的四项基本准则；如果这四项准则不能推行，国家就会灭亡。

完美不在于无可增添，而在于无可删减。

假使人人都彼此爱护，则天下安治；倘若人人都彼此交恶，则天下大乱。墨家主张兼爱。兼爱，指同时爱不同的人或事物。墨子主张爱无差别等级，不分厚薄亲疏。