模型的好坏取决于其假设。
教学只是教育的脚手架;真正的建筑是由孩子自己完成的。
The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.
方程式对我更重要,因为政治只看眼前,而方程式是永恒的。