You can't learn too soon that the most useful thing about a principle is that it can always be sacrificed to expediency.
📚 名句词汇解析
从本句名言中提取的重要词汇，帮助你深度理解这句话
adj. 有用的，有益的，有帮助的;令人满意的;
💡 use用+ful可…的” →有用的
"The memory expansion cards are useful adjuncts to the computer."
内存扩充卡是计算机很有用的附件。
近义：helpful, assistive, available, profitable, purposive, serviceable
反义：idle, inane, ineffective, insignificant, lousy, needless
n. 原则，原理;准则，道义;道德标准;本能;
💡 prim, prin 表”首先的,领头的”
"They are agreed in principle but not in detail."
他们的看法在大体上是一致的,但是在细节上有所不同.
近义：law, axiom, rule, tenet, motive, point
vt.& vi. 学习，学会;习得;得知;记住;
vt. 记住;学习;得知;认识到;
vi. 学习;获知;
💡 学习好才能挣钱(earn)
"Children must learn socially acceptable behaviour."
儿童必须学会社会上认可的行为举止。
近义：know, acquire, develop, find, realize
反义：forget
adv. 立刻，马上;一会儿，不久;快;宁愿;
💡 速(谐音): 迅速
"The whole building was soon ablaze."
整栋大楼很快就熊熊燃烧起来。
近义：hereupon, apace, immediately, promptly, pronto, quickly
反义：langsyne, lately, whilom, yesterday, yesteryear, yore
n. 事件，形势;东西，事物;家伙;事业;
"She was the only thing that made life bearable."
只因有了她生活才可以过得下去。
近义：item, knickknack, article, object, tchotchke, thingamabob
expediency
[[ik'spi:diənsi]]
n. 权宜, 方便, 私利
近义：apropriateness, propriety, readiness, briskness, convenience, advantage