Where did stevenson say don't judge each day by the harvest you reap?

The quote "Don't judge each day by the harvest you reap, but by the seeds that you plant" is attributed to Robert Louis Stevenson. It emphasizes the importance of focusing on our efforts and contributions rather than just the immediate outcomes. By valuing the process of planting seeds—representing our actions and intentions—Stevenson encourages a mindset centered on growth and potential rather than just results.