I would have all the professors in colleges, all the teachers in schools of every kind, including those in Sunday schools, agree that they would teach only what they know, that they would not palm off guesses as demonstrated truths.

Hope is the consolation of the world.

The present is the necessary product of all the past, the necessary cause of all the future.

It is a blessed thing that in every age some one has had the individuality enough and courage enough to stand by his own convictions.

But honest men do not pretend to know; they are candid and sincere; they love the truth; they admit their ignorance, and they say, We do not know.

Let us account for all we see by the facts we know. If there are things for which we cannot account, let us wait for light. To account for anything by supernatural agencies is, in fact to say that we do not know. Theology is not what we know about God, but what we do not know about Nature.

If the reason I give is a good one, you will act upon it. If it is a bad one I cannot make it better by piling epithet upon epithet. There is no logic in abuse; there is no argument in an epithet.