The greater part of critics are parasites, who, if nothing had been written, would find nothing to write.

The wisdom of one generation will be folly in the next.

The feeling of it to my lungs was not sensibly different from that of common air; but I fancied that my breast felt peculiarly light and easy for some time afterwards. Who can tell but that, in time, this pure air may become a fashionable article in luxury. Hitherto only two mice and myself have had the privilege of breathing it.

It pleased God to make one nation the medium of all His communications with mankind: This the nation of the Jews has done to a considerable degree in all ages As civilization extended, they by one means or another became most wonderfully dispersed through all countries; and at this day they are almost literally everywhere, the most conspicuous, and in the eye of reason and religion, the most respectable nation on the face of the earth.

I have procured air [oxygen] ... between five and six times as good as the best common air that I have ever met with.

The more elaborate our means of our common sense is, the less the common sense it becomes.

But it is not given to every electrician to die in so glorious a manner as the justly envied Richmann.