We nurture and sharpen the thinking especially by the development of characteristics which seem to have nothing whatever to do with thinking, with concepts. The best method of developing good thinking is by complete absorption and insight, not so much through logical exercises but by observing one thing and another, using for this purpose processes in nature, in order to penetrate into hidden mysteries. Through absorption in problems of nature and of humanity, through the endeavour to understand complex personalities, through the intensifying of attentiveness, we grow wise. Absorption means striving to unravel something by thinking, by conceiving. In this connection, we shall be able to see that such mental absorption has a wonderfully good effect in later life.
Source: Rudolf Steiner – GA 130 – Esoteric Christianity and the Mission of Christian Rosenkreutz – Lecture 2 – Leipzig, 5th November 1911
Translated by Pauline Wehrle