If you wish to advance into the infinite, explore the finite in all directions.
It is related of an Englishman that he hanged himself to avoid the daily task of dressing and undressing.
The flowers are full of honey, but only the bee finds out the sweetness.
All theory, my friend, is grey, But green is life's glad golden tree.
Smoothly and lightly the golden seed by the furrow is covered.
Neither art thou the man to catch the fiend and hold him! [Ger., Du bist noch nicht der Mann den Teufel festzuhalten.