Socrates, considered as one of the founders of Western philosophy, was once named the wisest man on earth by the Oracle of Delphi. When Socrates heard that the oracle had made such a comment, he believed that the statement was wrong.

Socrates said: “ I know one thing: that I know nothing.”

You might be a wise person, but still, you know nothing. You can learn from everything and everyone. Over the years, I’ve been blessed to have great mentors, teachers, family, friends, that taught me about life.

We might learn things quickly, but we often forget things at the same rate — and sometimes we need to remind ourselves of the things we’ve learned.

Here are 25 of those reminders that others taught me. Illustrated by Maren Katelaan.