历史学家是一个向后看的先知。

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。

The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling, are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest, are the traits of success.

The only way to learn a new programming language is by writing programs in it.

你不可能取悦所有人，所以专注于做真实的自己。

悲伤是爱变成了永恒的缺失。