Four Professions

Dharmaja! Parasara, explained the Varna Ashrama Dharmas:

1. For a Brahmin, meditation itself is Yajna. Studying vedas is his livelihood. Tapas brings glory to Brahmin.
2. For Kshatriya, Ruling the Kingdom is his duty. Performing Yajnas, punishing wrong doers, protecting law abiding citizens and maintaining peace and tranquility are his foremost duties.
3. Supplying all kinds of commodities to Yajna is Vysya’s duty. His main profession is trade and commerce and entertaining guests.
4. Serving the above three castes is the livelihood of Sudra. It is equivalent to performing Yajna by Sudra. All the above Dharmas are to be followed by one and all scrupulously.
5. Sages and saints are to be worshipped by all castes.

Note : Not By Birth But Profession inclination

Five Gurus

Bhishma is a very strong character in Mahabharata. He was son of Ganga and Shantanu. His childhood name was Devavrata. During his childhood, Devavrata was taught political science and other subjects by

1. Brihaspati and 
2. Sukracharya, gurus of the Devas and Asuras respectively; 
3. Vedas and religious scriptures by the sage Vasishtha; 
4. Sage Markandeya was his spiritual guru. 
5. On Ganga's persuasion, Devavrata was taught martial arts, military sciences and the use of weapons by Parashurama.

Book of the Creation

The Srishti Khanda (Book of the Creation) is in the form of a dialogue between Bhishma and the sage Pulastya.

http://www.neelkanthdhaam.org/pdpuran1.html

Jamvu khanda Nirmana Parva - http://en.wikipedia.org/wiki/Jambudvipa
Bhumi Parva - Earth in Particular
http://www.sacred-texts.com/hin/m06/index.htm

Pigrimage
http://www.sacred-texts.com/hin/m03/m03081.htm
http://www.sacred-texts.com/hin/m03/m03085.htm

Club

http://en.wikipedia.org/wiki/Bachelors'_Club

http://www.thehindu.com/news/cities/Hyderabad/rss-a-club-of-bachelors-cant-teach-on-producing-children-owaisi/article6952017.ece

http://www.rbc.se/