We have no right to assume that any physical laws exist, or if they have existed up to now, that they will continue to exist in a similar manner in the future.
我们无权假设任何物理定律存在，或者即使它们至今存在，它们将来也会以类似的方式继续存在。
No president who performs his duties faithfully and conscientiously can have any leisure.
真相是想象力的产物。
在地球物理学中，我们处理的是物理原理在地球研究中的应用。