世界是一台机器，而我们是它的故障零件。
可持续性不是一种选择，而是我们对后代的责任。
In a state, the liberty of one citizen is a menace to the liberty of another.
The writer is someone who plays with the body of his mother.
Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
