Summer's 'full glow and luxuriance'

 In the depth of winter, I finally learned that within me there lay an invincible summer.

-- Albert Camus

  Summer has set in with its usual severity.

-- Samuel Taylor Coleridge

Summer is the time when one sheds one’s tensions with one’s clothes, and the right kind of day is jeweled balm for the battered spirit. A few of those days and you can become drunk with the belief that all’s right with the world.

-- Ada Louise Huxtable

Spring flew swiftly by, and summer came; and if the village had been beautiful at first, it was now in the full glow and luxuriance of its richness. The great trees, which had looked shrunken and bare in the earlier months, had now burst into strong life and health; and stretching forth their green arms over the thirsty ground, converted open and naked spots into choice nooks, where was a deep and pleasant shade from which to look upon the wide prospect, steeped in sunshine, which lay stretched out beyond. The earth had donned her mantle of brightest green; and shed her richest perfumes abroad. It was the prime and vigour of the year; all things were glad and flourishing.

-- Charles Dickens,  in Oliver Twist