Every phenomenon is within our reach if we treat it as an inclined plane, which is of easy ascent, though the thick end of the wedge may be steep and inaccessible.
If a man would enter upon some course of knowledge, he must either be deceived or deceive himself, unless external necessity irresistibly determines him. Who would become a physician if, at one and the same time, he saw before him all the horrible sights that await him?
How many years must a man do nothing before he can at all know what is to be done and how to do it!
Duty: where a man loves what he commands himself to do.