达芬奇之思想点滴
Iron rusts from disuse; water loses its purity from stagnation... even so does inaction sap the vigor of the mind.
-Leonardo da Vinci
Nothing strengthens authority so much as silence.
-Leonardo da Vinci
I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do.
-Leonardo da Vinci
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.
-Leonardo da Vinci
The noblest pleasure is the joy of understanding.
-Leonardo da Vinci
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