You can just do things.

It doesn't take long to get good

open world chess.

Chess openings.

On the shortness of life: wasting time, being preoccupied with future or past, and allowing others to control one's time.

Productivity tactics at a glance.

Nobel Laureate Richard Feynman, whose profession was physics but who also had a passion for art, sometimes combined equations and drawings in the same sketchbook