Noght veter noght haue spare to speke spare to spede.
[Nothing ventured, nothing had - if you don’t speak, you don’t advance.]
Heywood appears to be the first person to print a version of this English proverb but it may be a translation of the earlier 14th century French saying “Qui onques rien n’enprist riens n’achieva.” - [He who never undertook anything never achieved anything.]