I get my inspiration from great acts of great people. Philosophy void of action isn't enough, as the engineering saying goes that theory with practicals is most potent. Here are a few great men (in no particular order) whose contribution to humanity inspire masses.

Chanakya

Sardar Patel

Shaheed Bhagat Singh

Chandrashekhar Azad

Mahatma Gandhi

Lal Bahadur Shastri

Guru Gobind Singh

Swami vivekananda

Swami Dayanand

Chhatrapati Shivaji

Rani Lakshmibai

Albert Einstein

APJ Abdul Kalam

Maharana Pratap

Tatia Tope

Vishwanathan Anand

Gary Kasparov

JRD Tata

Dhirubhai Ambani

Ramanujam