Leonardo da Vinci

"Once you have tasted flight, you will forever walk the earth with your eyes turned skyward."

"Who could believe that such a fragile creature could move the mountains?"

"Gold has never given anybody the real pleasure."

"Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature."

"The art of knowing is knowing what to overlook."

"Intellectual passion drives out sensuality."

"Beyond a doubt truth bears the same relation to falsehood as light to darkness."

"Where there is shouting, there is no true knowledge."

"I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection."

"It is well to leave room for nature to take its place; it alone is capable of improving itself."

"Thought is work."

"Necessity is the mistress and guide of nature."

"In the arena of human life, the honors and rewards fall to those who show their good qualities in action."

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

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

"Justice consists of restoring equality."

"Patience is the passion of great souls."

"The two great warriors are Patience and Time."

"Once you have tasted flight you will always look at the world from a higher perspective."

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

"Anyone who conducts an argument by appealing to authority is not using his intelligence; he is just using his memory."

"The noblest pleasure is the joy of understanding."

"Poor is the pupil who does not surpass his master."

"Motion is the cause of all life."

"The greatest geniuses sometimes accomplish more when they work less."

"Practice is the best master. Truth can be found in practice alone."

"He who truly knows has no occasion to shout."

"Nature cannot be fooled; it will always reveal the truth to the diligent observer."

"Everyone realizes that one can believe little of what people say about themselves."

"Wherever the tissue of life is woven, nature designs beauty."