It's rarely worth it to condense your knowledge into a specialty.

You should be broad in your knowledge. Holmes says that you should have a clean "brain attic," but he's also a walking encyclopedia of knowledge. He reads incredibly broadly—he reads about art, music—things...

Learn how to notice small details.

It's not a superhuman ability. It's important to note when talking about Holmes that he has spent a lifetime cultivating the habits of mindfulness. So it's not like he was just born with this ability to be in touch with the wo...

This law also introduces three other phenotypes that Cipolla says co-exist alongside stupidity.

First there is the intelligent person, whose actions benefit both himself and others.

Then there is the bandit, who benefits himself at others’ expense.