Personalized To Thine Own Self Be True shakespeare Toddler Long Sleeve T-Shirt. This above all, to thine own self be true. William Shakespeare quote from Hamlet on a Toddler Long Sleeve Tee - Vintage Smoke. A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.