More Quotes by Leonardo da Vinci
Your brain is much better than you think; just use it!
Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.
It's not enough that you believe what you see. You must also understand what you see.
You don't get into trouble because of the things you don't know. It is the things you don't know you don't know that really get you into a mess.
Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works.
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.
average human “looks without seeing, listens without hearing, touches without feeling, eats without tasting, moves without physical awareness, inhales without awareness of odour or fragrance, and talks without thinking.
Details make perfection, and perfection is not a detail.
If you find from your own experience that something is a fact and it contradicts what some authority has written down, then you must abandon the authority and base your reasoning on your own findings.
Learning is the only thing the mind never exhausts, never fears, and never regrets.