Tjip de Jong
The greatest discovery is that a person can change his future by changing his attitude
Everyone thinks of changing the world, but no one thinks of changing himself
The best way to predict the future is to create it
Nothing will work unless you do
Discipline is de brug tussen doelstellingen en prestaties
Alle problemen zijn uiteindelijk taalproblemen
Don’t talk about it, be about it
The desire to improve is the precondition for progress
Change is the end result of all true learning
Ideas are easy. Implementation is hard
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