该句使用了条件状语从句，强调了数学应用对于科学完善的必要条件关系。
Mathematics is the queen of the sciences, and number theory is the queen of mathematics. — Gauss
The scientific level of a country can be measured by the amount of mathematics it consumes. — Rao
Number theory is one of the oldest branches of human knowledge, yet its most profound secrets are closely linked to its most trivial truths. — Smith
Read Euler, read Euler; he is our teacher. — Laplace
Sometimes, at first, we do not find the simplest and most beautiful proof, but it is precisely such proofs that allow us to delve into the wonderful connections of higher arithmetic truths. This is the driving force behind our continued research and what most enables us to make discoveries. — Gauss
A science can only reach a state of true perfection when it successfully applies mathematics. — Marx
I have resolved to abandon that geometry which is merely abstract. That is to say, I will no longer think about problems that serve only to exercise the mind. I do this in order to study another kind of geometry, one whose purpose is to explain natural phenomena... — Descartes
A mathematician who does not have a touch of poetry can never become a complete mathematician... — Weierstrass
数学是科学的女王，而数论是数学的女王。——高斯
一个国家的科学水平能够用它消耗的数学来度量——拉奥
数论是人类知识最古老的一个分支，然而他的一些最深奥的秘密与其最平凡的真理是密切相连的。——史密斯
读读欧拉，读读欧拉，他是咱们大家的老师。——拉普拉斯
有时候，你一开始未能得到一个最简单，最美妙的证明，但正是这样的证明才能深入到高等算术真理的奇妙联系中去。这是咱们继续研究的动力，并且最能使咱们有所发现。——高斯
一门科学，只有当它成功地运用数学时，才能到达真正完善的地步。——马克思
我决心放下那个仅仅是抽象的几何。这就是说，不再去思考那些仅仅是用来练思想的问题。我这样做，是为了研究另一种几何，即目的在于解释自然现象的几何……——笛卡儿
一个没有几分诗人才能的数学家决不会成为一个完全的数学家……——魏尔斯特拉斯
"Work attitude must be upright and serious, leaving no room for carelessness."
"Only by maintaining a rigorous and meticulous attitude can one minimize errors"
"Never make major decisions without thorough investigation."
"One's work attitude must be upright and earnest, leaving no room for carelessness."
"Vague language often indicates that one is talking nonsense."