Srimad Bhagavatam Canto 11, Chapter 10, Text 19

SB 11.10.19

yadi praptim vighatam ca
 jananti sukha-duhkhayoh
te ’py addha na vidur yogam
 mrtyur na prabhaved yatha
 
Translation: 
 
Even if people know how to achieve happiness and avoid unhappiness, they still do not know the process by which death will not be able to exert its power over them.
 
Purport: 
 
If the so-called intelligent materialists know the means of achieving happiness and destroying unhappiness, then they should deliver people from inevitable death. The scientists are busily working to solve this problem, but since they have completely failed, it is understood that they are not actually intelligent and that they do not know the means of achieving happiness and eliminating misery. It is most foolish to think that one can be happy with an ax hanging over one’s neck. Lord Krsna says in Bhagavad-gita, mrtyuh sarva-haras caham: “I Myself come before you as death and take everything away.” We should not blindly ignore the disaster of material life, but should instead accept the Lord’s causeless mercy, which He so magnanimously offers in His incarnation as Caitanya Mahaprabhu. We should surrender to the lotus feet of Lord Caitanya, who offers the real means for achieving unqualified happiness: the chanting of the holy names of the Lord. This is the Lord’s desire, and it is in our own self-interest to take up this process.
Srimad Bhagavatam Canto 11, Chapter 10, Text 18
Srimad Bhagavatam Canto 11, Chapter 10, Text 20