Answer:
I am so delicate that even mentioning me breaks me. What am I?
When young, I am sweet in the sun. When middle-aged, I make you gay. When old, I am valued more than ever. What am I?
I begin your sentences. What am I?
Squeeze me and I cry tears as red as flesh, but my heart is made of stone. What am I?
I may be made of metal, bone, or wood and have many teeth. My bite hurts no one and the ladies love me. What am I?
They come to witness the night without being called, a sailor's guide and a poet's tears. They are lost to the sight each day without the hand of a thief.