I found these in a pile at the flea market this weekend, and thought all three pretty good phrases to pin or frame up and hold in mind! Two are signed by a Mary Hump--which I know is short for Humphrey from a few drawings I am listing by her separately); the writing on the third is a bit different so might have been done by a sibling or class mate. 

Pretty Is measures 7 1/4" t x 6 3/4". All in good shape, with a little staining along the right side of "Its what we do"...no real matter. Sold as a set.