“Never allow a person to tell you no who doesn't have the power to say yes.”

“Nothing has ever been achieved by the person who says, It can't be done.”

“If many of our young people have lost the excitement of the early settlers, who had a country to explore and develop, it is because no one remembers to tell them that the world has never been so challenging, so exciting... Perhaps the older generation is often to blame with its cautious warning: “Take a job that will give you security, not adventure.” But I say to the young: “Do not stop thinking of life as an adventure. You have no security unless you can live bravely, excitingly, and imaginatively; unless you can choose a challenge instead of a competence.”

“The most unhappy people in the world are those who face the days without knowing what to do with their time. But if you have more projects than you have time for, you are not going to be an unhappy person. This is as much a question of having imagination and curiosity as it is of actually making plans.”

“Freedom makes a huge requirement of every human being. With freedom comes responsibility. For the person who is unwilling to grow up, the person who does not want to carry his own weight, this is a frightening prospect.”

“I have never felt that anything really mattered but knowing that you stood for the things in which you believed and had done the very best you could.”

“One thing life has taught me: if you are interested, you never have to look for new interests. They come to you. When you are genuinely interested in one thing, it will always lead to something else.”