Always have a plan before you enter a trade.
光的理论实际上是物理学两大理论的交汇点，即粒子理论和波动理论。
The world is full of obvious things which nobody by any chance ever observes.
The key to resilience is adaptability.
The journey, not the arrival matters.
The value of a network is proportional to the square of the number of connected users of the system.
Climate change isn't a future threat to forests—it's the chainsaw at work right now.