Here are some self-improvement quotes that I found:

- "There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self." - Ernest Hemingway
- "A man only learns by two things; one is reading and the other is association with smarter people." - Will Rogers
- "The only way to do great work is to love what you do." - Steve Jobs
- "The greatest glory in living lies not in never falling, but in rising every time we fall." - Nelson Mandela
- "The only person you are destined to become is the person you decide to be." - Ralph Waldo Emerson

I hope these quotes help you on your journey of self-improvement. Let me know if you need anything else.