"I am not an Athenian or a Greek, but a citizen of the world." -- Socrates
"He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god." -- Aristotle
"False words are not only evil in themselves, but they infect the soul with evil." -- Plato
"Silence is better than unmeaning words." -- Pythagros
"Remind yourself that all men assert that wisdom is the greatest good, but that there are few who strenuously seek out that greatest good." -- Pythagaros
"To explain all nature is too difficult a task for any one man or even for any one age. 'Tis much better to do a little with certainty, & leave the rest for others that come after you, than to explain all things by conjecture without making sure of any thing." -- Sir Isaac Newton
"Let the future tell the truth and evaluate each one according to his work and accomplishments." -- Nikola Tesla