1·Life being very short, and the quiet hour of it few; we ought to waste none of them in reading valueless books. — John Ruskin.
人生十分短促，宁静的时间又不多；我们不应该浪费宝贵的时间去读毫无价值的书。——约翰·拉斯金。
2·First, if you choose a thing that will not last forever, what you chose is valueless.
第一，你若选择一个无法永存的东西，你所选择的就毫无价值。
3·His stockbroker announced his portfolio as being valueless.
他的证券经纪人宣称他的有价证券毫无价值。