Quote #8935
Three failures denote uncommon strength. A weakling has not enough grit to fail thrice.
Quote #25932
I have learned to use the word ‘impossible’ with the greatest caution.
Quote #31491
The worst sin – perhaps the only sin – passion can commit, is to...
Quote #8335
How many of our daydreams would darken into nightmares if there seemed any danger...
Quote #15556
Nature is the most thrifty thing in the world; she never wastes anything; she...
Quote #15223
A page of history is worth a pound of logic.
Quote #30350
The surest way to corrupt a youth is to instruct him to hold in...
Quote #8778
I am Cuban, Argentine, Bolivian, Peruvian, Ecuadorian, etc… You understand.
Quote #19562
While day by day the overzealous student stores up facts for future use, He...
Quote #24408
Every great advance in science has issued from a new audacity of imagination.