I wrote this recently, thought it was an interesting story about time blocking...

Teddy Roosevelt wore many hats in his youth. While at Harvard, his list of activities included boxing, wrestling, bodybuilding, dancing, poetry reading, and, lest I forget, birding. He worked hard at his extracurriculars and still maintained stellar grades at a demanding school.

How did he pull it off?

Teddy built his schedule by taking the hours between 8:30 am and 4:30 pm and removed all the time spent in class, at lunch, or in athletic training (he trained for 1-hour each day). The time fragments that remained were for study, which freed up the hours outside of 8:30 am and 4:30 pm for birding.

Hustlers keep a disciplined schedule and redirect their focus towards things that excite them.