Aikido instructor George Leonard on mastery:
​”How long will it take me to master Aikido?” a prospective student asks.
“How long do you expect to live?” is the only respectable response.

From James Clear newsletter.

(I think you can replace (Ctrl + H) Aikido with Excel.)

James Clear

Please note: I reserve the right to delete comments that are offensive or off-topic.

Leave a Reply

Your email address will not be published.

This site uses Akismet to reduce spam. Learn how your comment data is processed.