Unity is strength

बहूनामप्यसाराणाम्
समवायो हि दुर्जयः ।
तृणैरावेष्ट्यते रज्जुः
येन नागोऽपि बद्ध्यते ॥

- पञ्चतन्त्रम्

Even insignificant things when grouped together become powerful and cannot be defeated easily. A rope made of hay sticks controls even a powerful elephant by firmly binding it.

In union, there is strength.
United we stand, divided we fall.