Certainly Wittgenstein worried about being morally good or even perfect, and he had great respect for sincere religious conviction, but he also said, in his 1929 lecture on ethics, that "the tendency of all men who ever tried to write or talk Ethics or Religion was to run against the boundaries of language," . to talk or write nonsense. This gives support to the view that Wittgenstein believed in mystical truths that somehow cannot be expressed meaningfully but that are of the utmost importance. It is hard to conceive, though, what these 'truths' might be.
French mathematician & philosopher Henri Poincaré (1854-1912)
But in other respects, the Chaillot Palace continues a tradition begun in 1900 with the construction of the Grand Palais. In spite of the obvious differences in style, there are some striking parallels between the two buildings. Both were built on sites of buildings left over from previous expositions: the Grand Palais replaced the old Palais de l'Industrie of 1855, and the Palais de Chaillot replaced the Palais du Trocadéro of 1878. The Palace of Industry was the major legacy of the first exposition of Napoleon III's Second Empire. The Trocadero was the major legacy from the first exposition launched by the Third Republic. Both buildings recalled some of the basic design features of their predecessors: the Grand Palais , like the old Palais de l'Industrie , crowning its elaborately decorated stone sheath with a vault of glass and iron; the Palais de Chaillot retaining from the old Palais du Trocadéro the encircling sweep of the colonnade and the ceremonial fountains facing the Seine. Both the Grand Palais and the Chaillot Palace were conceived as permanent art museums – legacies of their respective eras to the city of Paris for the glory of France.