To create a quote you only required to select 3 things:
1) Product or services being quoted and the quantity
2) Select a Quote stage
3) Select a currency (if you haven't selected one as default)
NOTE: If you want to learn how to convert a quote to a contract check this link: How to convert a quote to a contract?
TIP: For your convenience, you can select a predefined currency and taxes directly from Setup / System values and select the values to be used.