Who would not have been laughed at if he had said in 1800 that metals could be extracted from their ores by electricity or that portraits could be drawn by chemistry.

Now I must take you to a very interesting part of our subject-to the relation between the combustion of a candle and that living kind of combustion which goes on within us. In every one of us there is a living process of combustion going on very similar to that of a candle, and I must try to make that plain to you. For it is not merely true in a poetical sense-the relation of the life of man to a taper; and if you will follow, I think I can make this clear.

The important thing is to know how to take all things quietly.

The philosopher should be a man willing to listen to every suggestion,but determined to judge for himself.He should not be a respector of persons,but of things.Truth should be his primary object.

The world little knows how many of the thoughts and theories which have passed through the mind of a scientific investigator, have been crushed in silence and secrecy by his own severe criticism and adverse examination!

A centre of excellence is, by definition, a place where second class people may perform first class work.

It may be a weed instead of a fish that, after all my labour, I at last pull up.