The magic number 150 suggests that the size of our social networks is limited by the size of our brains.

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。

Humans are allergic to change. They love to say, 'We've always done it this way.' I try to fight that. That's why I have a clock on my wall that runs counter-clockwise.

每一个挑战都是了解自己新东西的机会。

"Writing is a way to explore the depths of the human experience."

The greatest rewards come from working on something that nobody else is working on.