Finding the original Latin text of Seneca ("No tree becomes rooted and sturdy unless many a wind assails it.")

Question

In what text of Seneca will I find the Latin for the statement, one English translation of which is, "No tree becomes rooted and sturdy unless many a wind assails it."

Answer 1

It is to be found in Seneca the Younger, De Providentia (On Providence), book 1, chapter 4, section 16

Non est arbor solida nec fortis nisi in quam frequens ventus incursat