Compare national development to the way that a farmer works with crops.
For successful crops to grow, you have to have good seeds, a good growing environment (well prepared soil), and the proper combination of water and sun to cause the seeds to germinate and the flourish.
Same with national development.
The seeds in this analogy are the people – smart, motivated people with ideas and creativity and ambition and vision.
The prepared land in this analogy is and education system and governmental system that provides intellectual and financial support for creative people with new ideas that will develop approaches to fixing national problems. In other words, you need the infrastructure in that country to allow progressive ideas to take hold and flourish.
The “rain and sun” in my analogy is referring to the feedback loop between people with ideas and how those ideas are carried out. and how the original ideas change in order to flourish.
Without any of those three, the plants, and the national development, will starve and die.