“A man in debt is so far a slave.”

“That second man has his own way of looking at things; asks himself which debt must I pay first, the debt to the rich, or the debt to the poor? the debt of money, or the debt of thought to mankind, of genius to nature? For you, O broker! there is no other principle but arithmetic. For me, commerce is of trivial import; love, faith, truth of character, the aspiration of man, these are sacred; nor can I detach one duty, like you, from all other duties, and concentrate my forces mechanically on the payment of moneys. Let me live onward; you shall find that, though slower, the progress of my character will liquidate all these debts without injustice to higher claims. If a man should dedicate himself to the payment of notes, would not this be injustice? Does he owe no debt but money? And are all claims on him to be postponed to a landlord's or a banker's?”

“Debt, grinding debt, whose iron face the widow, the orphan, and the sons of genius fear and hate;--debt, which consumes so much time, which so cripples and disheartens a great spirit with cares that seem so base, is a preceptor whose lessons cannot be forgone, and is needed most by those who suffer from it most.”

“Be not the slave of your own past - plunge into the sublime seas, dive deep, and swim far, so you shall come back with new self-respect, with new power, and with an advanced experience that shall explain and overlook the old.”

“Science does not know its debt to imagination.”

“We are never tired so long as we can see far enough.”

“The health of the eye seems to demand a horizon. We are never tired, so long as we can see far enough.”