It is right that we should stand by and act on our principles; but not right to hold them in obstinate blindness, or retain them when proved to be erroneous.

The lecturer should give the audience full reason to believe that all his powers have been exerted for their pleasure and instruction.

There’s nothing quite as frightening as someone who knows they are right.

I have taken your advice and the names used are anode cathode anions cations and ions the last I shall have but little occasion for. I had some hot objections made to them here and found myself very much in the condition of the man with his son and Ass who tried to please every body.

When I came to know Mrs. Marcet personally; how often I cast my thoughts backward, delighting to connect the past and the present; how often, when sending a paper to her as a thank you offering, I thought of my first instructress.

I am busy just now again on Electro-Magnetism and think I have got hold of a good thing but can't say; it may be a weed instead of a fish that after all my labour I may at last pull up.

What a delight it is to think that you are quietly & philosophically at work in the pursuit of science... rather than fighting amongst the crowd of black passions & motives that seem now a days to urge men every where into action. What incredible scenes every where, what unworthy motives ruled for the moment, under high sounding phrases and at the last what disgusting revolutions.