Nothing ventured, nothing gained.

In English: Nothing ventured, nothing gained. --You cannot expect to achieve anything if you don't take risks.

In Dutch: Hoge bomen vangen veel wind. -- High trees catch a lot of wind. = If you stick your head out, you are likely to get criticism.

In Russian: Не рискуя, не добудешь. Волков бояться — по дрова не ходить. Волков бояться — в лес не ходить.

In Spanish: El que no arriesga no gana.

In Romanian: Mai bine un dram de noroc decat un car de minte! -- Better a little of luck than a cart full of reason. = It's better to take a chance in life than plan everything with your reason.