A great man will find a great subject, or which is the same thing, make any subject great.
Concentration is the secret of srength.
Nature encourages no looseness; pardons no errors.
Few and mean as my gifts may be, I actually am, and do not need for my own assurance or the assurance of my fellows any secondary testimony.
All life is an experiment. The more experiments you make the better.
We ascribe beauty to that which is simple; which has no superfluous parts; which exactly answers its end; which stands related to all things; which is the mean of many extremes.