0 sick (in the way one shows his/her excessive interest in death, disease, cruel acts etc) -- morbidní
his morbid fascination with horror films
her morbid imagination.
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Můžeme to dokončit krok za krokem, ať je cesta jakkoli dlouhá, a nelze ji dokončit, ať je cesta jakkoli krátká, pokud si ani neoznačíte svou stopu.