In Jain Dharma, the main philosophy that helps a person face life’s problems with strength and a never-giving-up attitude is:

1. Theory of Karma

• Every सुख-दुःख, success-failure, gain-loss has a karmic cause.
• This teaches patience, responsibility, and inner balance.
• Instead of becoming hopeless, a Jain thinks: “My present effort can change my future.”

2. Theory of Self-Effort (Purusharth)

• Jainism strongly teaches that effort is essential.
• Karma gives results, but right effort, right conduct, and right discipline help reduce suffering.
• This builds determination and perseverance.

3. Theory of Anitya Bhavana (Impermanence)

• All worldly situations are temporary.
• Problems, pain, praise, and failure do not stay forever.
• This reduces fear and emotional burden.

4. Theory of Samata (Equanimity)

• Staying balanced in joy and sorrow is a central Jain value.
• A steady mind does not break easily under pressure.
• This is one of the strongest foundations of resilience.

5. Theory of Anekantavada

• Truth has many sides.
• A difficult situation may not be as final as it seems from one viewpoint.
• This gives flexibility of mind and prevents hopeless thinking.

6. Theory of Vairagya

• Detachment from excessive worldly attachment reduces suffering.
• When expectations are less, pain becomes less.
• This helps a person stay strong in hardship.

7. Theory of Soul’s Strength

• The soul is pure, powerful, and capable of liberation.
• This inspires confidence that one is not weak by nature.
• Inner strength comes from the true understanding of the आत्मा.

In simple words:

Jain philosophy develops a never-giving-up attitude through:

• Karma
• Purusharth
• Samata
• Anekantavada
• Vairagya
• Faith in the power of the soul

Most important practical teaching:

“Keep doing right effort with patience, without despair, and without attachment to immediate results.”

If you want, I can also give this in a short inspirational paragraph or in Gujarati/Hindi.