Solitude and Leadership
Multitasking, in short, is not only not thinking, it impairs your ability to think. Thinking means concentrating on one thing long enough to develop an idea about it.
William Deresiewicz • Solitude and Leadership
Here’s the other problem with Facebook and Twitter and even The New York Times. When you expose yourself to those things, especially in the constant way that people do now—older people as well as younger people—you are continuously bombarding yourself with a stream of other people’s thoughts. You are marinating yourself in the conventional wisdom. ... See more
William Deresiewicz • Solitude and Leadership

So solitude can mean introspection, it can mean the concentration of focused work, and it can mean sustained reading. All of these help you to know yourself better.
JamesClear.com • "Solitude and Leadership"
Leadership means finding a new direction, not simply putting yourself at the front of the herd that’s heading toward the cliff.