A summer's sun is worth the having. French Proverb

Summer afternoon - summer afternoon; to me those have always been the two most beautiful words in the English language. Henry James

What is one to say about June, the time of perfect young summer, the fulfillment of the promise of the earlier months, and with as yet no sign to remind one that its fresh young beauty will ever fade. Gertrude Jekyll,  On Gardening

It was a splendid summer morning and it seemed as if nothing could go wrong. John Cheever 

The summer night is like a perfection of thought. Wallace Stevens

To see the Summer Sky
Is Poetry, though never in a Book it lie—
True Poems flee—
Emily Dickinson

The trees that have it in their pent-up buds
To darken nature and be summer woods.
Robert Frost, Summer Woods