Bestselling author and happiness expert Gretchen Rubin has distilled life lessons into a new book of aphorisms, "Secrets of Adulthood," out today. Why it matters: Profound truths often come in small ...

As is apparent from these quotations from The Lichtenberg Reader, Lichtenberg was a master of the aphorism. Although he produced nothing else in the realm of great literature, his amazing skill at ...