One verse

Srimad Bhagavatam 7.13.31

7.13.31

आध्यात्मिकादिभिर्दु:खैरविमुक्तस्य कर्हिचित् । मर्त्यस्य कृच्छ्रोपनतैरर्थै: कामै: क्रियेत किम् ॥ ३१ ॥

adhyatmikadibhir duhkhair avimuktasya karhicit martyasya krcchropanatair arthaih kamaih kriyeta kim

adhyatmika-adibhih
adhyatmika, adhidaivika and adhibhautika
duhkhaih
by the threefold miseries of material life
avimuktasya
of one who is not freed from such miserable conditions (or one who is subjected to birth, death, old age and disease)
karhicit
sometimes
martyasya
of the living entity subjected to death
krcchra-upanataih
things obtained because of severe miseries
arthaih
even if some benefit is derived
kamaih
which can fulfill one’s material desires
kriyeta
what do they do
kim
and what is the value of such happiness

Materialistic activities are always mixed with three kinds of miserable conditions—adhyatmika, adhidaivika and adhibautika. Therefore, even if one achieves some success by performing such activities, what is the benefit of this success? One is still subjected to birth, death, old age, disease and the reactions of his fruitive activities.