Bad reasoning as well as good reasoning is possible; and this fact is the foundation of the practical side of logic.

He applied in 1902 to the newly formed Carnegie Institution for a grant to write a systematic book of his life's work. Sylvester who came to admire Peirce's work on mathematics and logic). In 1888 President Grover Cleveland appointed him to the Assay Commission.

In 1934 the philosopher Paul Weiss called Peirce "the most original and versatile of American philosophers and America's greatest logician". Charles Sanders Peirce (pron.