It is quite obvious that he is lying.

他显然在说谎。

But it is quite obvious that they are not true to an indefinite extent, and that the principles of saving, pushed to excess, would destroy the motive to production.

但很明显，它们在无限程度上是不正确的， 而且储蓄的原则被推到过度， 会破坏生产的动机。

It is quite obvious that road users, i.e. owners of cars and other vehicles, directly benefit from the road system, so undoubtedly they should bear some of the costs involved in building and maintaining it.

很明显，道路使用者， 即汽车和其他车辆的拥有者， 直接受益于道路系统，因此毫无疑问他们应该承担一些建设和维护道路的成本。