Devotee: What is the definition of science?
Prabhupāda: Perfect knowledge.
Devotee: Perfect knowledge.
Prabhupāda: Is it not?
Martin: I don't know.
Prabhupāda: You do not know what is the meaning of science?
Martin: No, I don't.
Prabhupāda: Then why you call science? How do you call "This is scientific"?
Martin: I can only give you my definition of science. Science is that endeavor of human beings by which they attempt to find out why things happen and how they happen.
Prabhupāda: That means perfect knowledge. Ah, I am seeing that this rose flower is growing, but I do not know how it is growing. If I know perfectly how it is growing, that is science. We know that, how it is growing. Bījaṁ māṁ sarva-bhūtānāṁ (BG 7.10). The seed of this rose tree is Kṛṣṇa. All kinds of seeds are Kṛṣṇa. Therefore, from one seed you find a tree is growing from which a perfect rose of yellow color is coming. And another tree, a perfect rose of red color is coming or variety of color is coming. The seed is different. Otherwise the earth is the one, the water is the one, but because the seed is different, therefore different plants are coming and different results are coming. But the seeds are Kṛṣṇa. This is our observation.