Leonardo da Vinci
For once you have tasted flight you will walk the earth with your eyes turned skywards, for there you have been and there you will long to return.
It had long since come to my attention that people of accomplishment rarely sat back and let things happen to them. They went out and happened to things.
I love those who can smile in trouble, who can gather strength from distress, and grow brave by reflection. 'Tis the business of little minds to shrink, but they whose heart is firm, and whose conscience approves their conduct, will pursue their principles unto death.
Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works. If it works big, others quickly copy it. Then you do something else. The trick is the doing something else.
There are three classes of people: those who see, those who see when they are shown, those who do not see.
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.