Online research in philosophy

Touch is a sense of communication. It is receptive, expressive, can communicate empathy. It can bring distant objects and people into proximity. It is a carnal world, with its pleasures of feeling and being felt, of tasting and touching the textures of flesh and of food. And equally it is a profound world of philosophical verification, of the communication of presence and empathy with others, of the mutual implication or folding of body, flesh and world.

We like Euclidean geometry because we are men [sic], and have eyes and hands, and need to operate a concept of space that will be independent of orientation, distance and size. Lucas, A Treatise on Time and Space.