"It does not matter how slowly you go as long as you do not stop.">
"When it is obvious that the goals cannot be reached, don't adjust the goals, adjust the action steps."
"He who learns but does not think, is lost! He who thinks but does not learn is in great danger."
"I only regret that I have but one life to lose for my country."
He is richest who is content with the least, for content is the wealth of nature."