There are no solids. There are no things. There are only interfering and non-interfering patterns operative in pure principle, and principles are eternal. Buckminster Fuller
There can be an infinite number of polygons, but only five regular solids. Carl Sagan
Everything you've learned in school as "obvious" becomes less and less obvious as you begin to study the universe. For example, there are no solids in the universe. There's not even a suggestion of a solid. There are no absolute continuums. There are no surfaces. There are no straight lines. Buckminster Fuller
Substances can exist in three states – gas, liquid and solid. Water exists in all three states: gas (steam or water vapour), liquid (ordinary water) and solid (ice}. Properties of gases, liquids and solids are different. C. N. R. Rao
Bodily fluids and solids are universally the most disgusting things we as human beings can come upon, but as long as they are inside us, it's part of you. Mary Roach
3D "dumb" solids are created in a way analogous to manipulations of real world objects (not often used today). Source: Internet