First deserve and then desire

पुण्यस्य फलमिच्छन्ति
पुण्यं नेच्छन्ति मानवाः ।
न पापफलमिच्छन्ति
पापं कुर्वन्ति यत्नतः ॥

People always desire to enjoy the fruits of good deeds, but they do not perform those good deeds. They never desire to suffer from the consequences of their sins, but they commit sins intentionally.

First deserve and then desire.
As you sow, so shall you reap.