“ Vision without execution is just hallucination. ”

“ Obstacles are those frightful things you see when you take your eyes off your goals. ”

“ The only real mistake is the one from which we learn nothing. ”

“ Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. ”

“ It requires more courage to suffer than to die. ”

“ It is the cause, not the death, that makes the martyr. ”

“ A picture is worth a thousand words. ”

“ Conquests will come and go but Delambre's work will endure. ”

“ Nothing is more difficult, and therefore more precious, than to be able to decide. ”

“ Show me a family of readers, and I will show you the people who move the world. ”

“ Courage isn't having the strength to go on - it is going on when you don't have strength. ”

“ Don't limit a child to your own learning, for she was born in another time. ”