• to burn the midnight oil
• to burn the midnight oil
• to burn the midnight oil
• to burn the midnight oil
• to burn the midnight oil
• to burn the midnight oil
• an old dog will learn no tricks
• to go while the going is good
• at leisure, in after years, in the sequel, later, later on, posteriorly
• to oversleep, overslept
• to leave over, to remit, to side-track