Convert this phrase into a metaphor
Life is a race
"Life is a marathon, with its long stretches of endurance as well as moments of pushing your limits to reach the finish line."
Complete the following task based on the instruction and optional input provided.### Instruction:
Convert this phrase into a metaphor

### Input:
Life is a race

### Output:
"Life is a marathon, with its long stretches of endurance as well as moments of pushing your limits to reach the finish line."