"I was very curious about what's the meaning of life. I had an existential crisis when I was 11 or 12, came to conclusion that we don't know the answer, but if we increase the scope & scale of civilization we've a better chance of understanding the meaning of life" — @elonmusk
Something I explained to my 12 yo: When you're a little kid, your parents create your environment. Then there's a second stage where your peers do. Then for ambitious people there's a third stage where you create your own environment by choosing your own peers.
The teacher learns more than the student.
The author learns more than the reader.
The speaker learns more than the attendee.
The way to learn is by doing.
FUN FACT
J.J. Thomson won the Nobel in Physics in 1906 when he showed electrons were particles.
His son G. P. Thomson won the Nobel Prize in Physics in 1937 for showing that electrons are waves.