No one is more profoundly sad than he who laughs too much. [ Jean Paul ]

The greatest of fools is he who imposes on himself, and in his greatest concern thinks certainly he knows that which he has least studied, and of which he is most profoundly ignorant. [ Shaftesbury ]

Gentle feelings produce profoundly beneficial effects upon stern natures. It is the spring rain which melts the ice-covering of the earth, and causes it to open to the beams of heaven. [ Fredrika Bremer ]

Cheeriness is a thing to be more profoundly grateful for than all that genius ever inspired or talent ever accomplished. Next best to natural, spontaneous cheeriness is deliberate, intended and persistent cheeriness, which we can create, can cultivate and can so foster and cherish that after a few years the world will never suspect that it was not an hereditary gift. [ Helen Hunt Jackson ]