密码学是关于在存在对手的情况下进行通信的。
投资就是低买高卖,相当简单。问题是要知道什么是低,什么是高。
采石业的创新不仅关乎新机械,更在于重新构想我们与开采土地的关系。
也许宇宙中最反直觉的真理是:你给别人的越多,你得到的也越多。了解这一点是智慧的开始。
Once in a while the phenomena we exploit are particularly present. We like a reasonable amount of volatility. In our business we want some action. “Tumult is usually good for us. We don’t have credit lines of any significance. We don’t do a lot of leveraged-type financing.