The disparagement of empirical evidence in favor of a metaphysical world of illusion has its origin in the conflicy between the emancipated individual of bourgeois society and his fate within that society.

Reason as an organ for perceiving the true nature of reality and determining the guiding principles of our lives has come to be regarded as obsolete.

Now that science has helped us to overcome the awe of the unknown in nature, we are the slaves of social pressures of our own making. When called upon to act independently, we cry for patterns, systems, and authorities. If by enlightenment and intellectual progress we mean the freeing of man from superstitious belief in evil forces, in demons and fairies, in blind fate--in short, the emancipation from fear--then denunciation of what is currently called reason is the greatest service reason can render.

The complexity of the connection between the world of perception and the world of physics does not preclude that such a connection can be shown to exist at any time.

The world is so possessed by the power of what is and the efforts of adjustment to it, that the adolescent's rebellion, which once fought the father because his practices contradicted his own ideology, can no longer crop up. ... Psychologically, the father is ... replaced by the world of things.

The pleasure a man gets from a landscape would [not] last long if he were convinced a priori that the forms and colors he sees are just forms and colors, that all structures in which they play a role are purely subjective and have no relation whatsoever to any meaningful order or totality, that they simply and necessarily express nothing....No walk through the landscape is necessary any longer; and thus the very concept of landscape as experienced by a pedestrian becomes meaningless and arbitrary. Landscape deteriorates altogether into landscaping.

Spinoza , for example, thought that insight into the essence of reality, into the harmonious structure of the eternal universe, necessarily awakens love for this universe. For him, ethical conduct is entirely determined by such insight into nature, just as our devotion to a person may be determined by insight into his greatness or genius. Fears and petty passions, alien to the great love of the universe, which is logos itself, will vanish, according to Spinoza, once our understanding of reality is deep enough.