A first stepping-stone to success的用法和样例：
- Failures are stepping stones to success for strong hearts determined to persevere.
- Failure is the first step to success.
- I've got some wisdom words for you :perservere is the surest stepping stones to success.
- Develop success from failures. Discouragement and failure are two of the surest stepping stones to success.
- Confidence is the first step to success.