A problem cannot be solved by people who are concerned with only one or another of its parts.
Masanobu Fukuoka
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Every truth passes through three stages before it is recognized. In the first it is ridiculed, in the second it is opposed, in the third it is regarded als self-evident. Arthur Schopenhauer |
De kunst van het heldere denken Bij Managementboek.nl | Bol.com |