Leonardo da Vinci

"All things are interwoven with one another; a sacred bond connects them; there is scarcely one thing separated from any other thing."

"The acquisition of knowledge is always of use to the intellect, because it may thus drive out useless things and retain the good."

"It is better to make a beginning anywhere than nowhere at all."

"Men of high learning and capacity are often wanting in prudence and discernment."

"The most pathetic person in the world is someone who has sight but has no vision."

"Art is the queen of all sciences communicating knowledge to all the generations of the world."

"The noblest pleasure is the joy of understanding."

"Whoever loves practice without theory is like the sailor who steers without rudder and compass."

"Learning never exhausts the mind."

"The eye which truly sees is the eye of the heart."

"A man who does not make new acquaintances as he advances through life is soon left alone."

"One can have no smaller or greater mastery than mastery of oneself."

"The great painter does not paint the world as it is, but as he wishes it to be."

"Nature is not something to be conquered but understood."

"Water is the driving force of all nature."

"Even knowledge of death is not enough to overcome the terror of mortality in human hearts."

"The acquisition of knowledge is never a waste of effort."

"Nothing strengthens authority so much as silence."

"The depth and strength of a human character are defined by its moral reserves."

"Wisdom is the daughter of experience."

"While I thought that I was learning how to live, I have been learning how to die."

"A well-spent day brings happy sleep; a well-used life brings happy death."

"The human foot is a masterpiece of engineering and a work of art."

"Obstacles cannot crush me. Every obstacle yields to stern resolve."

"The painter has the Universe in his mind and hands."

"Everything connects to everything else."

"Iron rusts from disuse; stagnant water loses its purity; in cold water, inaction is the killer."

"The eye is a window through which the soul looks out."

"Prudence is not a fearful quality but a wise one."

"God sells knowledge for labor; honor sells itself."