In completing one discovery we never fail to get an imperfect knowledge of others of which we could have no idea before, so that we cannot solve one …

- Joseph Priestley

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

- Joseph Priestley

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

- Joseph Priestley

It is no use speaking in soft, gentle tones if everyone else is shouting.

- Joseph Priestley

In completing one discovery we never fail to get an imperfect knowledge of others.

- Joseph Priestley

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 som…

- Joseph Priestley

Every man, when he comes to be sensible of his natural rights, and to feel his own importance, will consider himself as fully equal to any other pers…

- Joseph Priestley

Could we have entered into the mind of Sir Isaac Newton, and have traced all the steps by which he produced his great works, we might see nothing ver…

- Joseph Priestley

When we say there is a GOD, we mean that there is an intelligent designing cause of what we see in the world around us, and a being who was himself u…

- Joseph Priestley