'Like Yeats, Thomas has produced his most powerful work in his old age…reminds me of Beethoven’s last quartets in its fearless exploration of the mysteries of life and death…He is the first great poet since the Metaphysicals of the 17th century to draw his images from the science of his day' – Denis Healey.
'Reading R.S. Thomas’s poems has become like reading the prophet Jeremiah…we find the same tenacity of theme and purpose; the ability to look without blinking into the misuse of the raw material of humanity’ – David Scott
'He was an Anglican parish clergyman, but he was also a man of the earth who believed God to be Nature itself. This is one of the oldest Welsh poetic traditions’ – Jan Morris.