All the evolution we know of proceeds from the vague to the definite.

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.