Imagination is a powerful agent for creating, as it were, a second nature out of the material supplied to it by actual nature.

I shall never forget my mother, for it was she who planted and nurtured the first seeds of good within me. She opened my heart to the lasting impressions of nature; she awakened my understanding and extended my horizon and her percepts exerted an everlasting influence upon the course of my life.

If justice perishes, human life on Earth has lost its meaning.

I am an investigator by inclination. I feel a great thirst for knowledge.

All our knowledge begins with the senses...

Sincerity is the indispensable ground of all conscientiousness, and by consequence of all heartfelt religion.

The sceptics, a kind of nomads, despising all settled culture of the land, broke up from time to time all civil society. Fortunately their number was small, and they could not prevent the old settlers from returning to cultivate the ground afresh, though without any fixed plan or agreement.