How long do you usually keep the text messages in your mobile phone?

Will be a long time, more important or memorable will be saved and sent to your mailbox. Of course, I don't use my mobile phone to send text messages much now. Except for the short message sent by the operator or I don't know where, delete it immediately. I don't know how to read the text messages sent. The main mobile phones are used for making phone calls and surfing the Internet. Not in the mood to send text messages. Naturally, I won't go to see it.