Oral delivery aims at persuasion and making the listener believe they are converted. Few persons are capable of being convinced the majority allow themselves to be persuaded.

The little that is completed, vanishes from the sight of one who looks forward to what is still to do.

If all these devils really exist it proves there must be angels, too.

There is nothing more frightful than ignorance in action.

Moral epochs have their course as well as the seasons. We can no more hold them fast than we can hold sun, moon, and stars. Our faults perpetually return upon us; and herein lies the subtlest difficulty of self-knowledge.

The best benefit we derive from history is the enthusiasm it excites.

As soon as any one belongs to a narrow creed in science, every unprejudiced and true perception is gone.