Those who are big chemist, big scientist . . . just like Professor Einstein. He used to accept how God's brain is working. He appreciated. He was a great scientist. And the ordinary scientist also, they think that "Now we are able to do everything without God. Therefore we are bigger than God." That is not fact. You are greater scientist when by your scientific knowledge you prove the existence of God and how He is working so finely that varieties of things are coming out of material nature. That is the perfection of knowledge. Otherwise, svanuṣṭhitasya dharmasya saṁsiddhir hari-toṣaṇam (SB 1.2.13). Hari-toṣaṇam. Unless Kṛṣṇa sees that you are trying to glorify Him by your knowledge . . . then He becomes satisfied, that "I have given him some knowledge, and he is utilizing this knowledge for My glorification. He is My devotee."
Devotee's business is to glorify. He doesn't take any credit for himself. Actually, there is nothing to be taken credit. The all credit goes to Kṛṣṇa. A devotee neither claims; neither it is possible. Even he may be very, very big devotee, he will never claim any credit for his glorious activities. His glorious activities means to make Kṛṣṇa glorious. That is his glorious activities. Not that like the so-called materialist, he takes . . . wants to take the credit. No. Sva-karmaṇā tam abhyarcya samsiddhiṁ labhate naraḥ (BG 18.46). Sva-karmaṇā. You may be engaged in any pattern of work, any department of work. But by dint of your work you establish the existence of God, Kṛṣṇa; and whatever is being done, it is being done by the expert management of Kṛṣṇa. The sun is rising exactly in the time, and it is setting exactly in the time. And the temperature, according to the different season, the movement, uttarāyaṇa, dakṣiṇāyana—everything is managed so expertly under the order of the Supreme. Mayādhyakṣeṇa prakṛtiḥ (BG 9.10). Don't think the sun is working so nicely automatically. No automatically. The master is there: Kṛṣṇa. Yasyājñayā bhramati sambhṛta-kāla-cakraḥ (Bs. 5.52). The sun is so powerful substance within this universe—there are many millions of suns; this is one sun only—but it is carrying out the order of Kṛṣṇa.