"You cannot climb uphill by thinking downhill thoughts."
"The art of common sense is applying the best wisdom we know today based on all our yesterdays."
"The Chinese philosophy Lao-tze listed gentleness as the first quality of greatness."
"Happiness is a state of mind. Lincoln once said: "We are as happy as we make up our minds to be."
"Happiness doesn't come from doing what we like to do but from liking what we have to do."
"You learn from that great master of imagination Thomas Alva Edison, who when asked the secret of his inventive genius replied, 'I listen from within.'"
"Tomorrow's memory depends upon today's impressions."
"If you make your children happy now," wrote Kate Douglas Wiggin, "you'll make them happy twenty years from now by the memory of it."
"The art of progress is the story of man's relentless determination to improve his condition."
"Live by admiration rather than disgust. Judge people by their best, not by their worst."