पञ्चतंत्र, मित्रभेद - धैर्यं

त्याज्यं धैर्यं विधुरेऽपि काले
    धैर्यात्कदाचिद्गतिमाप्नुयात्सः ।
यथा समुद्रेऽपि च पोतभङ्गे
    सांयात्रिको वांछति तर्तुमेव ॥

- पञ्चतंत्र, मित्रभेद

Even when one is faced with adversity, he must not abandon courage. If one has courage, he will one day meet a good end. Even when a ship is sinking, the sailors still look forward to being saved (or swim to the shore).

- Panchatantra, Mitrabheda