The first thing that should be present in someone who wants to develop truly practical thinking is faith and confidence in the reality, the reality of thoughts. What does that mean? From a glass in which there is no water, one cannot pour water. And in a world, in which there are no thoughts, one cannot find any thoughts. It is most absurd to believe that the sum of our thoughts is present only in us. If someone dismantles a clock and discovers the laws out of which it was built by thinking, then he must assume that the clockmaker put the parts of the clock together according to these laws. No one should believe that one can design and from a world that was not designed and formed out of thoughts. Everything we discover about nature and natural events consists of nothing else but what first must have been laid into it before. There are no thoughts in our souls, which were not out there in the world beforehand.
Source (German): Rudolf Steiner – GA 057 – Wo und wie findet man den Geist? – Berlin 11 February 1909 (p 251)
Translated by Nesta Carsten-Krüger