即使一种行为模式是近乎普世的，我们也无法预先知道它究竟是一个我们不能改变的自然法则，还是只是一种我们能够并且应该改变的原始陋习。
Even if a pattern of behaviour is almost universal, we can't know in advance if it is a law of nature we cannot change or simply a remnant of our primitive past that we can and should modify.
不过，事实仍然是，仅仅改变氧气浓度一项指标，蜻蜓的体型就自然增大了。遗憾的是，我们不能把这些巨型蜻蜓放到野外去对付那些致人死命的蚊子。
Still, the fact remains that a simple change in oxygen levels produced naturally giant dragonflies--too bad we can't release them into the wild to take care of those deadly mosquitoes .
“如果你尝试着去改变你的自然的机体节律，我们不能完美的适应那样，”南希—克罗博士——埃默里临床睡眠混乱中心的主管说。
"If you're trying to alter your natural body rhythm, we don't adjust perfectly to that," said Dr. Nancy Collop, director of Emory Clinic Sleep Disorders Center.
我们不能改变控制大脑的自然法则。 我们同样不能改变控制我们行为的任何因素。
We don’t control any of the factors which control our behavior.
我们不能改变这一自然规律，就像我们不能改变月球的轨道一样。
We can't change this natural law any more than we can change the moon's orbit.
当我们不能改变物理的自然法则，我们因此常感身心不平衡及失去和谐吗？
While we can't change the physical laws of nature, how often do we feel out of balance and out of harmony with them?
佛陀教导我们，生老病死是不能改变的，那是自然的过程。
Buddha taught that nothing can be done about the process of birth, aging, sickness and death. It will naturally run its course.
佛陀教导我们，生老病死是不能改变的，那是自然的过程。
Buddha taught that nothing can be done about the process of birth, aging, sickness and death. It will naturally run its course.
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