Here’s several principles Colin Powell shares in his book It Worked For Me: In Life and Leadership as well as some that Oren Harari shares in his book recounting Powell’s leadership (The Leadership Secrets of Colin Powell):

• Be prepared to tick people off
• Establish trust
• Walk the talk
• Pick the right people
• Listen
• Be vigilant in the details
• Check your ego at the door
• Let change lead growth
• Seek consensus (but don’t be ruled by it)
• Push the envelope
• View people as partners
• Trust those in the trenches
• Make optimism a top priority
• Strive for balance
• Prepare to be lonely