Their motivation was doing exciting mathematics and science.

他们的动力在于令人激动的数学和科学。

Calculus, a study of change and motion, is at the heart of modern mathematics and science.

微积分是对变化和运动的研究，是现代数学和科学的核心。

Their mother was unusual for a woman of the nineteenth century. She had completed college. She was especially good at mathematics and science.

他们的母亲在19世纪看来是一个不同寻常的女性。她念完了大学，她的数学和科学尤其的好。

Furthermore, the discussions in a dissertation must satisfy the strictest rules of logic applied to mathematics and science.

此外，论文中的讨论必须满足应用于数学和科学的最严格的逻辑规则。

Each statement in a dissertation must be correct and defensible in a logical and scientific sense. Furthermore, the discussions in a dissertation must satisfy the strictest rules of logic applied to mathematics and science.

论文中的每一个陈述都必须在逻辑和科学意义上正确且站得住脚。此外，论文中的讨论必须满足应用于数学和科学的最严格的逻辑规则。