What do you think of having Plan B?

Today I was blogging someone's post about not wanting to have plan B because she fears that by having plan B to fall back to, she would never work hard enough to make plan A works. She also said that since she loves life so much that even there would be difficulties and failures in life, she would still hold on to plan A and plan A only. This is my response to her.

It is wonderful to love life. Why shouldn't we? We only have one and really don't know how long it lasts until it ends. Life is full of sufferings and pain but yet is filled with happiness and laughers. That makes life so interesting and unique. If we have never gone through sufferings and pain, we will never understand how great to be happy and to laugh. I go through life with one important concept. If I am at the bottom of my spirit and going through the toughest time of my life, I don't give up hope because I believe there is always light at the end of a dark tunnel. Life, afterall, is a cycle.

I am a plan B girl and may be that's why I am not successful. I do not like to feel hopeless when things are not going my way. In B school, we call that contingency planning. I am a planner. I plan everything. I guess it's because I want to be still in control when my plan A is not working. If I have tried everything I could for plan A and it's still not working, I will feel better if I have a plan B to try. That is just my personal opinion. : )

I wonder what other thinks.