Answer: If we don't experience bad things, we won't be able to separate good from bad.
Explanation:
This is a quote by Heraclitus, a Greek philosopher from the city of Ephesus (modern Turkey). In this quote, Heraclitus tried to convey the idea that, if there were only good things in this world, people would not be able to differentiate good from bad. We need to experience injustice firsthand, in order to be able to recognize and appreciate justice.