Perhaps then one reason why we have no great poet, novelist or critic writing today is that we refuse to allow words their liberty. We pin them down to one meaning, their useful meaning: the meaning which makes us catch the train, the meaning which makes us pass the examination.
I picture the vast realm of the sciences as an immense landscape scattered with patches of dark and light. The goal towards which we must work is either to extend the boundaries of the patches of light, or to increase their number. One of these tasks falls to the creative genius; the other requires a sort of sagacity combined with perfectionism.