One's age should be tranquil, as childhood should be playful. Hard work at either extremity of life seems out of place. At midday the sun may burn, and men labor under it; but the morning and evening should be alike calm and cheerful.
Children show me in their playful smiles the divine in everyone. - Michael Jackson
Humanity has advanced, when it has advanced, not because it has been sober, responsible, and cautious, but because it has been playful, rebellious, and immature. - Tom Robbins
No man, ever indulged more freely or happily in that playful facetiousness which gratifies all without wounding any. - William Wilberforce