Humanism is a philosophical and ethical stance that emphasizes the value and agency of human beings, individually and collectively, and generally prefers critical thinking and evidence (rationalism and empiricism) over acceptance of dogma or superstition. The meaning of the term humanism has fluctuated according to the successive intellectual movements which have identified with it. The term was coined by theologian Friedrich Niethammer at the beginning of the 19th century to refer to a system of education based on the study of classical literature ('classical humanism'). Generally, however, humanism refers to a perspective that affirms some notion of human freedom and progress. It views humans as solely responsible for the promotion and development of individuals and emphasizes a concern for man in relation to the world. In modern times, humanist movements are typically non-religious movements aligned with secularism, and today humanism may refer to a nontheistic life stance centred on human agency and looking to science rather than revelation from a supernatural source to understand the world. The word 'humanism' is ultimately derived from the Latin concept humanitas. It entered English in the nineteenth century. However, historians agree that the concept predates the label invented to describe it, encompassing the various meanings ascribed to humanitas, which included both benevolence toward one's fellow humans and the values imparted by bonae litterae or humane learning (literally 'good letters'). In the second century AD, a Latin grammarian, Aulus Gellius (c. 125 – c. 180), complained: Gellius says that in his day humanitas is commonly used as a synonym for philanthropy – or kindness and benevolence toward one's fellow human beings. Gellius maintains that this common usage is wrong, and that model writers of Latin, such as Cicero and others, used the word only to mean what we might call 'humane' or 'polite' learning, or the Greek equivalent Paideia. Yet in seeking to restrict the meaning of humanitas to literary education this way, Gellius was not advocating a retreat from political engagement into some ivory tower, though it might look like that to us. He himself was involved in public affairs. According to legal historian Richard Bauman, Gellius was a judge as well as a grammarian and was an active participant the great contemporary debate on harsh punishments that accompanied the legal reforms of Antoninus Pius (one these reforms, for example, was that a prisoner was not to be treated as guilty before being tried). 'By assigning pride of place to Paideia in his comment on the etymology of humanitas, Gellius implies that the trained mind is best equipped to handle the problems troubling society.' Gellius's writings fell into obscurity during the Middle Ages, but during the Italian Renaissance, Gellius became a favorite author. Teachers and scholars of Greek and Latin grammar, rhetoric, philosophy, and poetry were called and called themselves 'humanists'. Modern scholars, however, point out that Cicero (106 – 43 BCE), who was most responsible for defining and popularizing the term humanitas, in fact frequently used the word in both senses, as did his near contemporaries. For Cicero, a lawyer, what most distinguished humans from brutes was speech, which, allied to reason, could (and should) enable them to settle disputes and live together in concord and harmony under the rule of law. Thus humanitas included two meanings from the outset and these continue in the modern derivative, humanism, which even today can refer to both humanitarian benevolence and to a method of study and debate involving an accepted group of authors and a careful and accurate use of language. During the French Revolution, and soon after, in Germany (by the Left Hegelians), humanism began to refer to an ethical philosophy centered on humankind, without attention to the transcendent or supernatural. The designation Religious Humanism refers to organized groups that sprang up during the late nineteenth and early twentieth centuries. It is similar to Protestantism, although centered on human needs, interests, and abilities rather than the supernatural. In the Anglophone world, such modern, organized forms of humanism, which are rooted in the 18th-century Enlightenment, have to a considerable extent more or less detached themselves from the historic connection of humanism with classical learning and the liberal arts. The first Humanist Manifesto was issued by a conference held at the University of Chicago in 1933. Signatories included the philosopher John Dewey, but the majority were ministers (chiefly Unitarian) and theologians. They identified humanism as an ideology that espouses reason, ethics, and social and economic justice, and they called for science to replace dogma and the supernatural as the basis of morality and decision-making.