Sonnet 94 by William Shakespeare

They that have power to hurt and will do none,

That do not do the thing they most do show,

Who, moving others, are themselves as stone,

Unmoved, cold, and temptation slow,

They rightly do inherit heaven's graces

And husband nature's riches from expense;

They are the lords and owners of their faces,

Others but stewards of their excellence.

The summer's flower is to the summer sweet,

Though to itself it only live and die,

But if that flowers with base infection meet,

The basestweed outbraves his dignity:

For sweetest things turn sourest by their deeds;

Lilies that fester smell far worse than weeds.

(When Love Speaks, performed by Sian Phillips)