Immoderately she weeps for Tybalt’s death,
And therefore have I little talk’d of love;
For Venus smiles not in a house of tears.

– William Shakespeare

Romeo and Juliet, Act 4, Scene 1. Paris is saying that he is having a hard time courting Juliet, because she is preoccupied with crying over Tybalt’s death. The passage contains an allusion to Venus, the goddess of love who doesn’t smile on a grieving family. Little does Paris know that most of Juliet’s tears are for her banished secret husband Romeo – however, the audience does, making this dramatic irony.