The most important thing in trading is to protect your capital.
The camera is like a weapon; it's dangerous if you don't know how to use it.
真理不是为所有人准备的,而是为那些寻求它的人准备的。
成功不是终点,失败也不是末日。
释义:人才没有固定不变的价值,器物没有一成不变的用处。