Capitalism drives the employers to do their worst to the employed, and the employed to do the least for them. And it boasts all the time of the incentive it provides to both to do their best! . . . The reason the Capitalist system has worked so far without jamming for more than a few months at a time, and then only in places, is that it has not yet succeeded in making a conquest of human nature so complete that everybody acts on strictly business principles.
The history of science can be viewed as the recasting of phenomena that were once thought to be accidents as phenomena that can be understood in terms of fundamental causes and principles.
Though the principles of the banking trade may appear somewhat abstruse, the practice is capable of being reduced to strict rules. To depart upon any occasion from those rules, is consequence of some flattering speculation of extraordinary gain, is almost always extremely dangerous, and frequently fatal to the banking company which attempts it.
My interest in science was always essentially limited to the study of principles.... That I have published so little is due to this same circumstance, as the great need to grasp principles has caused me to spend most of my time on fruitless pursuits.
When you build a bridge, you insist that it can carry 30,000 pounds, but you only drive 10,000-pound trucks across it. And that same principle works in investing.