The world is full of suffering, but it is also full of the overcoming of it.
使变量可变很容易。控制恒定的持续时间是诀窍。
We must balance the need for energy with the need to protect the environment.
成功的关键不仅在于个人技能,还在于团队的协作。
The greatest gift you can give someone is your time and attention.