| "Simplicity is the
ultimate sophistication" |
"Knowing is not enough; we must apply. Being willing is not enough; we must do" |
"Nature never breaks her own laws." |
"Where the spirit does not work with the hand there is no art." |
"Learning never exhausts the mind." |
"There are three classes of people: those who see; those who see when they are shown; and those who do not see." |
