All our knowledge has its origin in our perceptions - Leonardo da Vinci

"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."

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

"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."

"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."