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Philosophy

Humanism is strongly linked to rationality. For humanists, humans are reasonable beings, and reasoning and the scientific method are means of finding truth. Humanists argue science and rationality have driven successful developments in various fields while the invocation of supernatural phenomena fails to coherently explain the world. One form of irrational thinking is adducing. Humanists are skeptical of explanations of natural phenomena or diseases that rely on hidden agencies.

Human autonomy is another hallmark of humanist philosophy. For people to be autonomous, their beliefs and actions must be the result of their own reasoning. For humanists, autonomy dignifies each individual; without autonomy, people's humanity is lessened. Humanists also consider human essence to be universal, irrespective of race and social status, diminishing the importance of collective identities and signifying the importance of individuals.

Immanuel Kant provided the modern philosophical basis of the humanist narrative. His theory of critical philosophy formed the basis of the world of knowledge, defending rationalism and grounding it in the empirical world. He also supported the idea of the moral autonomy of the individual, which is fundamental to his philosophy. According to Kant, morality is the product of the way humans live and not a set of fixed values. Instead of a universal ethic code, Kant suggested a universal procedure that shapes the ethics that differ among groups of people.

Philosopher and humanist advocate Corliss Lamont, in his book The Philosophy of Humanism (1997), states:

In the Humanist ethics the chief end of thought and action is to further this-earthly human interests on behalf of the greater glory of people. The watchword of Humanism is happiness for all humanity in this existence as contrasted with salvation for the individual soul in a future existence and the glorification of a supernatural Supreme Being... It heartily welcomes all life-enhancing and healthy pleasures, from the vigorous enjoyments of youth to the contemplative delights of mellowed age, from the simple gratifications of food and drink, sunshine and sports, to the more complex appreciation of art and literature, friendship and social communion.