Freudenthal Hans.1905 - 1990. German Mathematician.

‘Geometry is grasping space . . . that space in which the child lives, breathes and moves. The space that the child must learn to know, explore, conquer, in order to live, breathe and move better in it’.
Freudenthal 1973: 403.

"A beautiful problem should be beautiful in its own right and not just because it is related to geometry."

"Mathematics, even in the simplest application, often transcends thought and experience. As a language, mathematics can be used to tell us what we do not know, to explore the unknown. These are places of stillness and tranquility, where we can gaze upon what is unattainable and unknowable."