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"Denk in mogelijkheden"
"Not everything that counts can be counted. Not everything that can be counted counts"
"The root of learning is bitter, although the fruit is sweet." (king Salomon. 970-926 B.C.)
"Acquire wisdom is so much better than gold, acquire insight is preferable to silver"
"The art of medicine consists of amusing the patient while nature cures the disease" (Voltaire)