Be Careful, It's My Heart — Frank Sinatra

Be careful, it's my heart, It's not my watch you're holding, it's my heart. It's not the note that i sent you that you quickly burn, It's not a book i lent you that you never return. Remember, it's my heart. The heart with which so willingly i part It's yours to take, to keep or break, But please, before you start, Be careful, it's my heart.