Found the following hamletworks.org entries referring to line 1722

View Commentary Note for 1722-3
1722 Must giue vs pause, there's the respect3.1.67
1723 That makes calamitie of so long life:3.1.68

View Material Textual Note for 1722-3
1722 Must giue vs pause, there's the respect3.1.67
1723 That makes calamitie of so long life:3.1.68