“Therefore, what has a (positive) existence serves for profitable adaptation, and what has not that for (actual) usefulness.”

“Imagination is what providence uses to take men captive in actuality, in existence, in order to get them far enough out, or within, or down into existence. And when imagination has helped them get as far out as they should be - then actuality genuinely begins.”

“Each person has the potential of making a positive impact on the world. It all depends on what you do with what you have. Success is not to be measured by the amount of money you possess or the position you attain but rather in how you use both. Position and money can be squandered or abused, but they can also be used to help others.”

“Philosophy ... is a science, and as such has no articles of faith; accordingly, in it nothing can be assumed as existing except what is either positively given empirically, or demonstrated through indubitable conclusions.”

“Adapt what is useful, reject what is useless, and add what is specifically your own.”

“What good has impatience ever brought? It has only served as the mother of mistakes and the father of irritation.”