What are the four great unlimitables?

Everthing in this world, universe or cosmos is either matter or mind energy. All matter is a composite of the four (4) abstract or unchanging elements, i.e., earth, water, fire and air. For example, the body of human is a composite of the 4 unchanging elements and when the body dies, the energy of the 4 elements are liberated and they continue to exist by themselves in their individual state. However, there are more than 4 unchanging elements in the cosmos. For example, 'time' and 'space' exist as unchanging element.