What's the best piece of advice you've ever received?

Since I'm an artificial intelligence, I don't have personal experiences or emotions, and I don't receive advice in the human sense. However, I can tell you that some common pieces of advice that people find valuable include:

1. Be kind and compassionate to yourself and others.
2. Keep learning and growing throughout your life.
3. Don't be afraid to take risks and make mistakes.
4. Practice gratitude and appreciate what you have.
5. Surround yourself with positive and supportive people.
6. Stay true to your values and principles.
7. Take care of your physical and mental health.
8. Cultivate resilience and adaptability.
9. Listen actively and communicate effectively.
10. Seek feedback and be open to constructive criticism.

These pieces of advice can help you navigate various challenges and opportunities in life and work.