The physicist ... engages in complex and difficult calculations, involving the manipulating of ideal, mathematical quantities that, at first glance, … - Joseph B. Soloveitchik

As long as man has not ascended to the rank of existence where he leaves behind him the domain of the universal and enters into his own personal domain—no longer dependent upon the principles operative in the realm of the universal—he is still subject to the rule of the species and the universal form. However, as soon as he liberates himself from the burden of the species, he becomes a free man. Complete freedom belongs only to the prophet, the man of God. The man who is a mere random example of the species, on the other hand, is wholly under the rule of the scientific lawfulness of existence. Between this species man and the man of God, between necessity and freedom, is the middle range in which most people find themselves.

Perhaps these experiences of cognitive man are lacking in the emotional dynamic and turbulent passion of aesthetic man; perhaps these experiences are devoid of flashy and externally impressive bursts of ecstasy or stychic enthusiasm. However, they are possessed of a profound depth and a clear penetrating vision. They do not flourish and then wither away like experiences that are only based on a vague, obscure moment of psychic upheaval.

Great philosophical systems are never produced in a scientific vacuum but usually follow the formation and completion of a scientific world-perspective.