Chandrasekhara Swami: (excerpt from a recent class) Scientists always try to explain everything without recourse to anything beyond matter, but they always run into problems.
Scientists can never go so deep in their investigations that they reach the Supreme Lord because they are averse to coming to that conclusion. They are like people who dig in one place until they reach something significant, and then stop and start digging in another place.
In the Vedic literature, the universe is described as having seven shells of different substances, each ten times wider than the one beneath it. If it were a fruit, it would be very frustrating to deal with because so much of it is just shell.
Physical chemistry is very straightforward, and scientists have known about it for quite some time. The organic chemistry that goes on in cells is a completely different story, and the physical chemistry cannot fully explain it. Organic chemistry is just plain crazy. If you study what kinds of voodoo and shenanigans are going on, even at the cellular level, it becomes completely apparent that organic chemistry cannot be explained in terms of simple physical chemistry. In life, chemicals are dancing around in all kind of extremely unlikely ways. The proof is that as soon as life ends, regular chemistry takes over and the body disintegrates. There are unseen energies doing their magic all over the place. Here are some videos showing how complicated is the chemistry of living systems:
Ignorance is to not investigate at all or to not care to understand. Passion is to investigate but never ultimately connect everything to the Supreme.