Thomas Couture’s Soap Bubbles, ca. 1859, on view at The Metropolitan Museum of Art.

From the museum’s website about the work-

A schoolboy, identifiable by the books on the desk, contemplates soap bubbles, traditional symbols of the transience of life. A wilting laurel wreath on the wall behind him suggests the fleeting nature of praise and honors. The word “immortalité,” inscribed on the paper inserted in the mirror, reinforces the painting’s allegorical content.

Couture was an influential teacher known for his opposition to strict academic instruction. Among his pupils was Manet, who in 1867 painted his own, more naturalistic, version of this subject (Museu Calouste Gulbenkian, Lisbon).

Interestingly, there is a very similar painting to this one, Daydreams, 1859, also by Couture, that is on view at The Walters Art Museum in Baltimore, Maryland.

This time the writing on the paper in the mirror reads “Le Parasseux indigne de vivre”- the lazy one unworthy of living.