我发现,从所有的学科吸取我所需要的95%的知识,并将它们变成我思维习惯的一部分,也不是很难的事情。当然,掌握了这些道理后之后,你们必须通过实践去使用它们。若不付诸实践,终究徒劳。
You may have the worst of your worries when you most appear to be at ease.
The natural price of labor is that price which is necessary to enable the laborers, one with another, to subsist and to perpetuate their race, without either increase or diminution.