The quote you're referring to is often attributed to the famous investor and philanthropist Warren Buffett. He has been quoted as saying, "Someone is sitting in the shade today because someone planted a tree a long time ago."

While this quote is not specifically about trading, it can be interpreted as a commentary on the importance of considering the long-term impact of one's actions, even if the benefits are not immediately apparent. In the context of trading, this could mean that a trader who provides income for others is not only making money for themselves but also contributing to the success of the broader ecosystem.

It's worth noting that this quote is often paraphrased or modified, and may not always be attributed to Warren Buffett. Nonetheless, the underlying message is a powerful one: that our actions can have far-reaching consequences, and that considering the long-term impact of what we do can help us make better decisions.

Circle of life.