There is superintendence of the Supreme Personality of Godhead, Krsna. He likes that "This kind of bija, or the seed, will produce this kind of flower and this kind of flavor." The superintendence is there of the Supreme Personality of Godhead. We fools, we say, we cannot explain. We say "Nature." What is this nature? There must be brain behind the nature. Otherwise, how a rose, so nicely it is coming? Even from artistic point of view, if you want to paint one flower, you have to take so much labor, so many colors, reflection, and so many instruments, then hardly you can paint one nice rose flower. Still, it is not as good. And not at all good in comparison to the original flower. So if this third-class flower, you have to apply so much brain, and this first-class flower has no brain behind it? Is that very good logic? What is this logic? There must be brain.
Lecture on Bhagavad-gita 7.9-10, Bombay, 24 February, 1974