Leonardo Da Vinci on Mental Models Quotes

"In nature there is no effect without a cause; understand the cause and you will have no need of the experiment."

"Just as food eaten without appetite is a tedious nourishment, so does study without zeal damage the memory."

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

"Blame is safer than praise."

"The greatest deception men suffer is from their own opinions."

"The knowledge of all things is possible."

"He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast."

"A well-spent day brings happy sleep."

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

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

"Experience never errs; it is only your judgments that err by promising themselves effects such as are not caused by your experiments."

"Nature is the source of all true knowledge. She has her own logic, her own laws, she has no effect without cause nor invention without necessity."

"The mind that is anxious about future events is miserable."

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

"The merit of the spirit is to be found in the work."

"Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous."

"The mind that is often exercised becomes more vigorous."

"Think of the end before the beginning."

"Realize that everything connects to everything else."

"Simplicity is the ultimate sophistication."

"Truth was the only daughter of Time."

"Details make perfection, and perfection is not a detail."

"Science is the captain, and practice the soldiers."

"He who thinks little, errs much."

"Study without desire spoils the memory, and it retains nothing that it takes in."

"Learning never exhausts the mind."

"The acquisition of any knowledge is always useful to the intellect, because it will be able to banish the useless things and retain those which are good."

"The truth of things is the chief nutriment of superior intellects."

"A beautiful body perishes, but a work of art dies not."

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

"Perspective is the bridle and rudder of painting."

"The noblest pleasure is the joy of understanding."

"I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do."