The proof of the pudding is in the eating.
The show must go on.
Time and tide wait for no man.
There are more ways than one to skin a cat.
There is safety in numbers.
The best-laid plans go astray.
The grass is greener on the other side of the fence.
The end justifies the means.
The harder you work, the luckier you get.
Two heads are better than one.