虎穴に入らずんば虎子を得ず
1
nothing ventured, nothing gained;you will not get the tiger cub without entering the tiger's den
諺にもある通り「虎穴に入らずんば虎子を得ず」だ。
As the saying goes, "Nothing ventured, nothing gained."
Other forms
虎穴に入らずんば虎児を得ず 【こけつにいらずんばこじをえず】