I have been impressed with the urgency of doing.
Knowing is not enough; we must apply.
Being willing is not enough; we must do.
Quotes by Leonardo da Vinci
Learning is the only thing the mind never exhausts, never fears and never regrets.
Simplicity is the ultimate sophistication.
When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been and there you will always long to return.
Simplicity is the ultimate sophistication
When once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.
The noblest pleasure is the joy of understanding.
One day the world will look upon research upon animals as it now looks upon research on human beings.
In rivers, the water that you touch is the last of what has passed and the first of that which comes; so with present time.
Although nature commences with reason and ends in experience it is necessary for us to do the opposite, that is to commence with experience and from this to proceed to investigate the reason.

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