I have not failed. I've just found 10,000 ways that won't work.

There is no substitute for hard work.

Opportunity is missed by most people because it is dressed in overalls and looks like work.

Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.

Genius is one percent inspiration and ninety-nine percent perspiration.

There is no substitute for hard work.

-- Thomas Edison

He who plans more, wins. He who plans less, loses.

-- Mōri Motonari

When you are earnest, wisdom emerges. When you are half-hearted, complaints emerge. When you are careless, excuses emerge.

-- Takeda Shingen

No plan survives first contact with the enemy.

-- Carl von Clausewitz

Forgetting is the natural grace that time bestows.

-- Yasushi Inoue

Life is too long to do nothing, yet too short to accomplish something.

-- Atsushi Nakajima