A pure devotee has no demand from the Lord. His only concern is to serve the Lord sincerely and seriously and he is not at all concerned about what will happen in the future. — Srimad Bhagavatam, 04.09.29.
Prabhupada is most grateful when we render service to Krishna sincerely and it is by His mercy that we will be able to go back to the spiritual sky.
Learn technology with sincerity & determination. Utilise it to serve Krishna.
Material sense gratification, sinful activity kills the propensity to serve Krishna.
Every living being is anxious for full freedom because that is his transcendental nature. And this freedom is obtained only through the transcendental service of the Lord.
Srimad Bhagavatam 1.6.37,
Hammer every thought in your mind thinking of how to serve Krishna.