Take the course opposite to custom and you will almost always do well.
Quit thy childhood, my friend, and wake up!
I do not know is a phrase which becomes us.
Chemistry... is like the maid occupied with daily civilisation; she is busy with fertilisers, medicines, glass, insecticides ... for she dispenses the recipes.
An honest man nearly always thinks justly.
But remain the teacher of the young teachers. Advise and direct us, and we will be ready to learn. I will have need of you as long as I live.