In a letter written to Eduard Büsching (25 October 1929), after Büsching sent Albert Einstein a copy of his book "Es gibt keinen Gott" ("There is no God"), Einstein wrote, "We followers of Spinoza see our God in the wonderful order and lawfulness of all that exists and in its soul ["Beseeltheit"] as it reveals itself in man and animal." According to Einstein, the book only dealt with the concept of a personal god and not the impersonal God of pantheism. In a letter written in 1954 to philosopher Eric Gutkind, Einstein wrote "the word God is for me nothing more than the expression and product of human weaknesses." In another letter written in 1954 he wrote "I do not believe in a personal God and I have never denied this but have expressed it clearly." In "Ideas And Opinions", published a year before his death, Einstein stated his precise conception of the word God: