Find a quote that relates to the following theme
Optimism
"Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence." - Helen Keller
Complete the following task based on the instruction and optional input provided.### Instruction:
Find a quote that relates to the following theme

### Input:
Optimism

### Output:
"Optimism is the faith that leads to achievement. Nothing can be done without hope and confidence." - Helen Keller