No matter how much the life world is the world in which they live, to which even all their theoretical works belong, and no matter how much they make use of elements of the life world, which is precisely the foundation of theoretical treatment as that which is treated, the life world itself is just not their subject matter, not as it is pregiven to them in each case and as it afterwards takes over their work; and thus their subject matter is not, in a full survey, the universe of what is, which is ever in unceasing movement of relativity for us and is the ground for all particular projects, ends, and end and workhorizons for ends of a higher level.