Three types of people: past, present and future tenses

[This posting was inspired by facebook status of a friend who is a commissioner of a leading company in Indonesia]

I always find three types of people as follows:

People who always use the past tense sentence
These people are usually always tell to everybody on their achievements of the past. Usually these people are very proud of their origins.

People who always use present tense sentences
These people are very realistic and pragmatic.

People who always use the future tense sentence
These people are usually very ambitious to achieve something. Having a strong impetus for progress. However, sometimes very selfish and only thinking about himself.