Like a great poet, nature knows how to produce the greatest effects with the utmost economy of means: nothing but sun, trees, flowers, water, and lov… - Heinrich Heine

Do not smile at my advice -- the advice of a dreamer who warns you against Kantians, Fichteans, and philosophers of nature. Do not smile at the visionary who anticipates the same revolution in the realm of the visible as has taken place in the spiritual. Thought precedes action as lightning precedes thunder. German thunder is of true Germanic character; it is not very nimble, but rumbles along ponderously. Yet, it will come and when you hear a crashing such as never before has been heard in the world's history, then you know that the German thunderbolt has fallen at last. At that uproar the eagles of the air will drop dead, and lions in the remotest deserts of Africa will hide in their royal dens. A play will be performed in Germany which will make the French Revolution look like an innocent idyll.

Where books are burned, in the end people will be burned too.
( — 1823; Dort wo man Bücher verbrennt, verbrennt man auch am Ende Menschen.)

„Da sind nur eine Sonne, Baume, Blumen, Wasser und Liebe. Freilich, fehlt Letztere im Herzen des Beschauers, mag das Ganze wohl einen schlechten Anblick gewähren, und die Sonne hat dann bloß soundso viel Meilen im Durchmesser, und die Bäume sind gut zum Einheizen, und die Blumen werden nach den Staubfäden klassifiziert, und das Wasser ist nass.