(noun) Level of excellence. Example: "Quality of life is usually determined by health, education, and income."
"Courage is the first of human qualities because it is the quality which guarantees the others."
"Men acquire a particular quality by constantly acting in a particular way."
"The quality of a person's life is in direct proportion to their commitment to excellence, regardless of their chosen field of endeavor."
"You will never do anything in this world without courage. It is the greatest quality of the mind next to honor."
"The happiness of your life depends upon the quality of your thoughts."
"A smile is often the key thing. One is paid with a smile. One is rewarded with a smile. One is brightened by a smile. And the quality of a smile can make one die."
"The things you think about determine the quality of your mind."
"The happiness of credulity is a cheap and dangerous quality of happiness, and by no means a necessity of life."
"Look beneath the surface; let not the several quality of a thing nor its worth escape thee."
"There is a difference between standard of living and quality of life. Quality of life is more important."
"A man ought not to value himself of his achievements or rare qualities of wit, much less of his riches, virtue or kindred."
"If you lose hope, somehow you lose the vitality that keeps moving, you lose that courage to be, that quality that helps you go on in spite of it all. And so today I still have a dream."