Rabbi Shimon ben Halafta was known as a man who tested everything through experience rather than theory alone. When a question arose about the nature of children, he did not consult books. He observed life.
The Midrash Hagadol on Exodus (Mishpatim) records that Rabbi Shimon had several sons, and he raised them with careful attention to how their characters developed. He noticed something that other sages had debated only in the abstract: children born of the same parents, raised in the same house, fed the same food, and taught the same lessons could turn out entirely different from one another.
One son was naturally drawn to Torah study. Another preferred working with his hands. A third was restless and adventurous, always running off to explore the fields. Rabbi Shimon did not try to force them all into the same mold. He let each child follow the path that matched his nature.
The sages challenged him. "Should you not direct them all toward Torah?" they asked. Rabbi Shimon replied with a teaching that echoed through generations: "Even God did not create all trees the same. The cedar is tall and strong but bears no fruit. The vine is low and humble but produces wine that gladdens the heart. Each was created for its own purpose."
Bereshit Rabbah (9:1) confirms this principle. When God looked at His creation, He declared it "very good" (Genesis 1:31) — not because everything was the same, but precisely because everything was different. A father's task is not to make his children identical. It is to help each one discover the unique purpose for which God created them.