Here are some inspirational quotes about strength:

- "You never know how strong you are until being strong is the only choice you have." - Bob Marley
- "Being deeply loved by someone gives you strength, while loving someone deeply gives you courage." - Lao Tzu
- "Strength does not come from winning. Your struggles develop your strengths. When you go through hardships and decide not to surrender, that is strength." - Arnold Schwarzenegger
- "The world breaks everyone, and afterward, some are strong at the broken places." - Ernest Hemingway

I hope these quotes inspire you! Let me know if there's anything else I can help you with.