ŚB 2.10.25

Every human being is engaged in his particular occupational duty, and such activities are visible as men go hither and thither. This is very prominently visible in big cities of the world: people are going all over the cities with great concern, from one place to another. This movement is not limited only to the cities, but is also visible outside the cities from one place to another, or from one city to another, by different means of vehicles. Men are moving by cars and rails on the roads, by subways within the earth and by planes in the sky for the purpose of business success. But in all these movements the real purpose is to earn wealth for comfortable life. For this comfortable life the scientist is engaged, the artist is engaged, the engineer is engaged, the technician is engaged, all in different branches of human activity. But they do not know how to make the activities purposeful to fulfill the mission of human life. Because they do not know this secret, all their activities are targeted towards the goal of sense gratification without control, and therefore by all this business they are unknowingly entering into the deep regions of darkness.

Because they have been captivated by the external energy of the Supreme Lord, they have completely forgotten the Supreme Lord Viṣṇu, and thus they have taken it for granted that this life, as presently manifested under the conditions of material nature, is all in all for enjoying the highest amount of sense gratification. But such a wrong conception of life cannot give anyone the desired peace of mind, and thus in spite of all advancement in knowledge by use of the resources of nature, no one is happy in this material civilization. The secret is that at every step they should try to execute sacrifices toward the path of world peace. The Bhagavad-gītā (18.45-46) also advises the same secret in the following verses.