Theorizing Quotes

Let us work without theorizing, tis the only way to make life endurable.

I soon became convinced... that all the theorizing would be empty brain exercise and therefore a waste of time unless one first ascertained what the population of the universe really consists of.

Natural objects, for example, must be experienced before any theorizing about them can occur.

What is the use of theorizing as to wherein lies the charm that moves us?