Vasistha Muni has given a mantra about Lord Visnu: na te visnor jayamano na jato mahimnah param anantam apa. No one can estimate the extent of the uncommonly glorious activities of Lord Visnu. Unfortunately, there are so-called scientists who are subject to death at every moment but are trying to understand by speculation the wonderful creation of the cosmos. This is a foolish attempt. Long, long ago, Vasistha Muni said that no one in the past could measure the glories of the Lord and that no one can do so in the future. One must simply be satisfied with seeing the glorious activities of the Supreme Lords creation. The Lord therefore says in Bhagavad-gita (10.42), vistabhyaham idam krtsnam ekamsena sthito jagat: With a single fragment of Myself, I pervade and support this entire universe. The material world consists of innumerable universes, each one full of innumerable planets, which are all considered to be products of the Supreme Personality of Godheads material energy. Yet this is only one fourth of Gods creation. The other three fourths of creation constitute the spiritual world. Among the innumerable planets in only one universe, the so-called scientists cannot understand even the moon and Mars, but they try to defy the creation of the Supreme Lord and His uncommon energy. Such men have been described as crazy. Nunam pramattah kurute vikarma (Bhag. 5.5.4). Such crazy men unnecessarily waste time, energy and money in attempting to defy the glorious activities of Urukrama, the Supreme Personality of Godhead.