If NATURE has made any one thing less susceptible than all others of exclusive property, it is the action of the thinking power called an idea... No one possesses the less, because every other possess the whole of it. He who receives an idea from me, receives instruction himself without lessening mine; as he who lights his taper at mine, receives light without darkening me.
Thomas JeffersonAll we can do is to make the best of our friends, love and cherish what is good in them, and keep out of the way what is bad.
Thomas JeffersonThat ideas should freely spread from one to another over the globe, for the moral and mutual instruction of man, and improvement of his condition, seems to have been peculiarly and benevolently designed by nature, when she made them, like fire, expansible over all space, without lessening their density in any point, and like the air in which we breathe, move, and have our physical being, incapable of confinement or exclusive appropriation.
Thomas Jefferson