Although not a very old man, I have yet lived a great deal in my life, and I have known sorrow too bitter and joy too keen to allow me to become either cast down or elated for more than a very brief period over any success or defeat. - Theodore Roosevelt
The hidden hand of contentment is in the rewards of the gratified. The hidden hand of bliss is in the rewards of the tranquil. The hidden hand of happiness is in the rewards of the elated. The hidden hand of joy is in the rewards of the jubilant. - Matshona Dhliwayo