Clinical Trials

'Tis a lesson you should heed,
Try, try, try again.
If at first you don't succeed,
Try, try, try again.

But noble souls, through dust and heat,
Rise from disaster and defeat
The stronger.

Trials teach us what we are; they dig up the soil, and let us see what we are made of; they just turn up some of the ill weeds on to the surface.