
From Guide to Online Schools

... our fathers' minds are dead,
And we are governed with our mothers' spirits
Our yoke and sufferance show us womanish ....
(1.3.82-84)
So have I seen, when Cesar would appeare,
And on the Stage at halfe-sword parley were,
Brutus and Cassius; oh how the Audience
Were ravished, with what wonder they went hence ....
(For more information on the kinds of dramas, histories, and legends on which Shakespeare might have drawn for JC, as well as his other Roman plays, see volume V of Geoffrey Bullough's Narrative and Dramatic Sources of Shakespeare. You can download this in its entirety -- as well as the other seven volumes of Bullough and other neat stuff -- from playShakespeare.com
http://www.playshakespeare.com/library/cat_view/509-reference-documents?orderby=dmdate_published

That bucket down and full of tears am I,
Drinking my griefs, whilst you mount up on high.
Thy paleness moves me more than eloquence,Sigmund Freud, in a classic essay on the "The Theme of the Three Caskets", links this choice between three to a similar choice in another of Shakespeare's plays. Lear, however, makes the wrong choice, preferring the shiny flatteries of his two elder daughters to the silent love of Cordelia, his youngest. Freud interprets Bassanio's choice between three caskets as a choice between three women as well. (For Freud -- as you might expect! -- caskets, boxes, any sort of container stands in for woman.) But the choice of the third isn't a choice: it's inevitable that the third is chosen. Freud connects both Cordelia's silence and the pale lead of the third casket with death. Death is the inevitable third. But for Bassanio, a supremely desirable woman substitutes for death, putting off the inevitable. This is the wild wish fulfillment of dreams and of all comedies.
And here choose I -- joy be the conseqence!