买水管、延长线或梯子时，买比你认为需要的长得多的。才会是正确的尺寸。
When buying a garden hose， an extension cord， or a ladder， get one substantially longer than you think you need. It’ll be the right size.
The best way to predict the future is to create it.
如果你想改变世界，先从改变思维方式开始。