A painter has never dated his work, and the chronological order of his works has now begun to outline in the review literature. It is certainly wrong to locate the time of a self-portrait of the painter as 1930. By 1930, the painter had already He is 63 years old, but the young, dark-haired man in the painting is obviously the artist himself, but he is definitely not a 63-year-old man. The assumptions underlying the above conclusions are:. ['The artist has painted several self-portraits showing how he looks after 60.', 'It is impossible for a painter to paint himself as a young man when he is 63 years old.', 'Before the artist was far from 60, he had not painted a self-portrait with a clear date.', 'By failing to date his work, the painter tries to set aside time for comments on his work.']