In other words, knowledge of the external world begins with an immediate utilisation of things, whereas knowledge of self is stopped by this purely practical and utilitarian contact. – Jean Piaget
May He who is the Brahman of the Hindus, the Ahura-Mazda of the Zoroastrians, the Buddha of the Buddhists, the Jehovah of the Jews, the Father in Heaven of the Christians give strength to you to carry out your noble idea. – Swami Vivekananda
Any man of forty who is endowed with moderate intelligence has seen—in the light of the uniformity of nature—the entire past and future. – Marcus Aurelius