Sustainability is not an option; it's a responsibility we owe to future generations.
People are always blaming their circumstances for what they are. I don't believe in circumstances. The people who get on in this world are the people who get up and look for the circumstances they want, and, if they can't find them, make them.
做东西的时候，总要多备上一些——额外的材料、额外的部件、额外的空间、额外的饰面。这些额外的东西可以为错误提供备份、减轻压力，还可以为未来储备资源。它们是最便宜的保险。
I'm not perfect, but I'm always me.
数学不是一项观赏性运动。
A great leader listens more than they speak, and acts more than they plan.