The key to successful trading is to know when to buy and when to sell.
好的设计应该面向所有人，而不仅仅是那些负担得起的人。
Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.
机遇青睐有准备的头脑。
When we protect forests, we're not just saving trees - we're safeguarding humanity's future.