This is the land from whence, like the tidal waves, spirituality and philosophy have again and again rushed out and deluged the world, and this is the land from whence once more such tides must proceed in order to bring life and vigour into the decaying races of mankind. It is the same India which has withstood the shocks of centuries, of hundreds of foreign invasions, of hundreds of upheavals of manners and customs. It is the same land which stands firmer than any rock in the world, with its undying vigour, indestructible life.

Author: Swami Vivekananda

Source: Lectures from Colombo to Almora, page 213