"Man is an animal who is constantly striving to rise to a higher altitude."

"Don't keep forever on the public road, going only where others have gone, and following the ruts of conventionality. Leave the beaten track occasionally and dive into the woods. Every time you do so, …"

"When one door closes another door opens; but we so often look so long and so regretfully upon the closed door, that we do not see the ones which open for us."

"The only difference between a successful person and others is not a lack of strength, not a lack of knowledge, but rather a lack of will."

"Before you can achieve anything, you must know what you want. And you must be prepared to sacrifice your comfort to get it."