This great principle knows no exception, and we would search in vain in the realm of experience for an example to the contrary.
这一定律没有例外，在经验王国里去寻找相反的例子，只会是徒劳”。
2
I can't think of a single general principleof biology that does not have an exception somewhere by some organism.
我想不出哪一条生物学通则是对任何生物体适用而没有例外的。
3
With the sole exceptionof Plotinus and his followers, classical aesthetics identified the principle of beauty with the consonance of the parts with each other and the whole.