The fact that fat oils from vegetable sources can be used may seem insignificant today, but such oils may perhaps become in course of time of the same importance as some natural mineral oils and the tar products are now.
植物油脂肪油的使用在今天看来可能微不足道，但这些油或许会随着时间的推移变得像某些天然矿物油和焦油产品一样重要。
土壤上的每一道拖拉机轨迹，都是传统面容上的一道疤痕。
领导力是激励他人在曾经看到障碍的地方看到可能性。
最微小的善行也比最宏大的意图更有价值。
计算的目的是洞察，而非数字。
The essence of mathematics is not just in solving problems but in asking the right questions.