关于“坚强”的英语标题，以下是一些建议，综合权威资料整理而成：

一、直接表达类

1. The Power of Resilience

2. The Essence of Strength

3. Enduring Strength: A Human Virtue

4. The Courage to Persevere

5. Unyielding Spirit

二、哲理启发类

1. Hardship for Growth: The Path to Strength

2. The Soft Shell of Resilience

3. Beyond Fear: The Strength Within

4. The Silent Strength of the Heart

5. When Hope Fails: The Resilience of the Soul

三、应用激励类

1. Cultivating Inner Strength

2. The Art of Standing Firm

3. Transforming Adversity into Strength

4. The Strength of Mindset

5. Empowering Yourself with Resilience

这些标题可根据具体使用场景选择，例如：

学术论文推荐使用"Enduring Strength: A Human Virtue"

高中英语作文主题可用"Transforming Adversity into Strength"

名言警句类内容适配"Beyond Fear: The Strength Within"

建议优先选择具有文学性和感染力的标题，如"Unyielding Spirit"或"Empowering Yourself with Resilience"，更能引发读者共鸣。