If there is anything for which I would go back to childhood, and live this weary life over again, it is for the burning, exalting, transporting thrill and ecstasy with which the young faculties hold their earliest communion with knowledge.

Had I the power, I would scatter libraries over the whole land as the sower sows his wheatfield.

Virtue is an angel, but she is a blind one, and must ask Knowledge to show her the pathway that leads to her goal.

Every addition to true knowledge is an addition to human power.

Love not only occupies the higher lobes of the brain, but crowds out the lower to make room for its expansion.

Habit is a cable; we weave a thread of it each day, and at last we cannot break it.

Ignorance breeds monsters to fill up the vacancies of the soul that are unoccupied by the verities of knowledge.