“Everyone is a genius at least once a year. The real geniuses simply have their bright ideas closer together
“Willpower is to the mind like a strong blind man who carries on his shoulders a lame man who can see
“Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young
“While one finds company in himself and his pursuits, he cannot feel old, no matter what his years may be
“It is a thousand times better to have common sense without education than to have education without common sense
“All my life I have tried to pluck a thistle and plant a flower wherever the flower would grow in thought and mind