Read all the time
Top leaders spend their time doing only two things: 1) getting knowledgeable and 2) making a few but critical decisions.
That is why, people like Bill Gates or Warren Buffet, spend most of their days just reading.
Reading is to the mind, what food is to your body. If you don’t have a regular intake you cannot function properly.
As Charles T. Munger said: “In my whole life, I have known no wise people (over a broad subject matter area) who didn't read all the time -- none, zero.”
Avoid toxic readings
But reading a lot is not a sufficient condition for a healthy and enlightened mind. The quality of what you read also highly affects your mental health and output.
It is not just about reading quality materials. It is also about avoiding toxic ones.
Reading junks (e.g. social media feeds, the news, etc.) will only make you worry, anxious, or resentful while negatively affecting your intellect.
So selecting what to read is as important as selecting what not to read.
Select only quality reading and read them slowly
As Naval Ravikant said: “I would rather read the best hundred books over and over again until I absorb them rather than read every single book out there.”
Quantity is not what matters, Deep understanding is.
Best books usually pass the test of time. If a book from twenty or more years ago is still highly renowned, it probably because what it contains remains fundamental knowledge.
There are these few books which are quoted over and over by other books. Those are the one you should go towards first. (corollary: I tend to avoid any new publication unless it is for an author whose other materials have passed the test of time already)
Think about a subject matter before you read about it
In the end, it is not just about ingurgitating someone else’s ideas and thoughts. Reading is about developing your opinions, connecting the dots across disciplines and concepts. It is about finding concrete applications from general ideas and theories.
But you cannot become this active mind by only being a passive reader.
As Arthur Schopenhauer said: “It is dangerous to read about a subject before we have thought about it ourselves. When we read, another person thinks for us; we merely repeat his mental process.”