What do we call visible light? We call it color. But the colors are only the names we give to the way light behaves when it hits something.
我们称可见光为什么?我们称之为颜色。但颜色只是我们给光碰到某物时的行为方式起的名字。
投资者和投机者之间最现实的区别在于他们对股市波动的态度。
In business, if you're not moving forward, you're falling behind.