What can I control?
The most practical question in philosophy: separating what is yours — judgments, choices, effort — from what is not, so effort lands where it changes things.
5 perspectives
Epictetus
Some things are up to us, some are not; peace lies in knowing which
“It's not what happens to you, but how you react to it that matters.”
Marcus Aurelius
You have power over your mind, not outside events
“You have power over your mind — not outside events. Realize this, and you will find strength.”
Seneca
We are not given a short life; we make it short
“It is not that we have a short time to live, but that we waste a lot of it.”
Omar Khayyam
The present is the only possession: the rest is memory or guess
“Be happy for this moment. This moment is your life.”
Baruch Spinoza
There is one substance: God, or nature
“Do not weep; do not wax indignant. Understand.”