Gray's surviving letters also show his sharp observation and playful sense of humour. He is well known for his phrase, "where , 'tis folly to be wise.", from "". It has been asserted that the Ode also abounds with images which find "a mirror in every mind". This was stated by Samuel Johnson who said of the poem, "I rejoice to concur with the common reader ... The Church-yard abounds with images which find a mirror in every mind, and with sentiments to which every bosom returns an echo". Indeed, Gray's poem follows the style of the mid-century literary endeavour to write of "universal feelings." Samuel Johnson also said of Gray that he spoke in "two languages". He spoke in the language of "public" and "private" and according to Johnson, he should have spoken more in his private language as he did in his "Elegy" poem.