I wish I could write to you as tenderly as I love you and tell you all the good things that I wish you. You are so infinitely dear to me, dearer than I can say... If things go on much longer as they are at present I shall have sometime to put you under glass or to have you set in gold. If only I could live in the same town with you and my parents... Do write me a nice letter soon. Your letters are like kisses.
Letter to Clara Schumann (31 May 1856) as quoted in Letters of Clara Schumann and Johannes Brahms, 1853-1896 (1971), edited by Berthold Litzmann