Profitability and environmental responsibility are not mutually exclusive—they go hand in hand when done right.

I don't care if you're black, white, straight, bisexual, gay, lesbian, short, tall, fat, skinny, rich or poor. If you're nice to me, I'll be nice to you. Simple as that.

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

永远不要让年龄成为学习或发现的障碍。