If you only have a hammer, the whole world becomes a nail--the most common hammer is in the shape of a credit card. The more myopic the focus on a particular method, the more difficult the solution, if and only if the focus is on the wrong method (and it can't be correct all the time, if you only have one). For example, when tackling an obstacle

The best way to think about cost is not the sticker price but the depreciation schedule. The depreciation schedule follows this equation: Annual cost = (Your cost - Used price)/(Years in service).

The individual consumers depend as strongly on an aggregate of stores as the stores depend on the aggregate of consumers.

Feynman once remarked that the best way to find new insights into a problem was to step out of the box, ignore previous publications, and come to your own conclusions. With such an approach, it often happens that a concept which is initially considered to be novel turns out to have been discovered already.

It's obviously more expensive, both in time and money, for Person A and Person B to gain the required amount of knowledge in both fields X and Y than it is if A were to concentrate on X while B concentrated on Y. In this way, both can gain the same depth of knowledge in half of the fields, in half the time. Alternatively, they can get twice as much

the difference between a heterotelic and a homeotelic response in a world that only has two possible goals. The homeotelic response moves closer to both goals whereas the heterotelic response, while moving further towards goal-1, actually moves away from goal-2.

To live as a free person, following lists of easy, repetitive things, possibly in return for some reward, is exactly what should be avoided. Instead, it's necessary to understand how the world works and how people have been specialized to the point of general incompetence, like ants, which only know how to do one job, but do it very well; this is

Education is supposed to transform and build the character, mind, and body of the students.

Which skills should one focus on? The Renaissance men of the 17th century strove to increase their ability to defend themselves with a variety of weapons. play a variety of musical instruments and paint. debate politics and philosophy. advance knowledge and the sciences.