Contradictory business advice

The key to being a big-selling writer of business decision advice is to contradict yourself. That formula is used to great success by Gladwell, Lehrer, Kahneman, Levitt, and others.

The physicist Niels Bohr was famous for explaining the atom in terms of parts that are particles and waves at the same time, depending on how you look at them. He said:

Two sorts of truth: profound truths 
recognized by the fact that the opposite is also a profound truth,
 in contrast to trivialities where opposites are obviously absurd.