something done out of passion, not for money
что-то сделано из страсти, а не ради денег (chto-to sdelano iz strasti, a ne radi deneg)
"Building that model train was a labor of love for him."
"Построить эту модель поезда было трудом любви для него." (Postroit etu model' poezda bylo trudom lyubvi dlya nego)
to make a very big or stupid mistake
success for someone inexperienced
a sudden and brilliant idea
to change opinions or decisions repeatedly
mental health depends on physical health
to prepare an official document or plan
