 I would like to thank Wim Veldman especially for his recent open-access article “Intuitionism: An Inspiration?”, which is a gift to curious students, mathematically inclined philosophers and philosophically inclined mathematicians. Veldman is a practicing intuitionistic mathematician whose mentor was M. de Jongh, one of Brouwer’s students. Intuitionism: An Introduction was written more than half a century ago by another of Brouwer’s students, A. Heyting, for a similar audience. The similarity of titles is appropriate. 