1921

for his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect

for his contributions to our knowledge of the chemistry of radioactive substances, and his investigations into the origin and nature of isotopes

in recognition of his brilliant literary achievements, characterized as they are by a nobility of style, a profound human sympathy, grace, and a true Gallic temperament

for their lifelong contributions to the cause of peace and organized internationalism

for their lifelong contributions to the cause of peace and organized internationalism