If any human being earnestly desire to push on to new discoveries instead of just retaining and using the old; to win victories over Nature as a worker rather than over hostile critics as a disputant; to attain, in fact, clear and demonstrative knowlegde instead of attractive and probable theory; we invite him as a true son of Science to join our ranks.

Speech of yourself ought to be seldom and well chosen.

A good conscience is a continual feast.

There is in man's nature a secret inclination and motion towards love of others, which, if it be not spent upon some one or a few, doth naturally spread itself towards many, and maketh men become humane and charitable, as it is seen sometimes in friars. Nuptial love maketh mankind, friendly love perfecteth it, but wanton love corrupteth and embaseth it.

I use all sorts of things to work with: old brooms, old sweaters, and all kinds of peculiar tools and materials... I paint to excite myself, and make something for myself.

Mysteries are due to secrecy.

Let no one think or maintain that a person can search too far or be too well studied in either the book of God's word or the book of God's works.