Sustainability isn't an option—it's the foundation of our future.
You have to be present in the moment.
当你不再担心别人怎么想的那一刻,你就自由了。
最伟大的发明是那些最直接满足人类需求的发明。
如果你一开始就承诺你还没有的东西,你会失去为之努力的欲望。