“They [Nazi captors]had more liberty, more options to choose from in their environment; but he [Viktor Frankl] had more freedom, more internal power to exercise his options.”

“Happiness, like unhappiness, is a proactive choice.”

“The purpose of teaching is learning and learning is changed behavior.”

“Habit is the intersection of knowledge (what to do), skill (how to do), and desire (want to do).”

“There's no better way to inform and expand you mind on a regular basis than to get into the habit of reading good literature.”

“Admission of ignorance is often the first step in our education.”