Good has two meanings: it means that which is good absolutely and that which is good for somebody.

It is during our darkest moments that we must focus to see the light.

Happiness depends upon ourselves.

Educating the mind without educating the heart is no education at all.

Adventure is worthwhile.

Patience is bitter, but its fruit is sweet.

Love is composed of a single soul inhabiting two bodies.

Education is an ornament in prosperity and a refuge in adversity.

Be a free thinker and don't accept everything you hear as truth. Be critical and evaluate what you believe in.

Knowing yourself is the beginning of all wisdom.

Criticism is something we can avoid easily by saying nothing, doing nothing, and being nothing.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Trying to guess the enemy’s next move is useful

Science - or the products of science like technology - is just a way of achieving something real, something that happens, something that works.

You can change your wife, your politics, your religion, but never, never can you change your favourite football team.

There is no royal path to good writing; and such paths as exist do not lead through neat critical gardens, various as they are, but through the jungles of self, the world, and of craft.

Psychologically, it's what I love to be. Tearing apart a person from the inside out.

I'm doing this for my family and my country.

I'm not motivated by vanity, glory or the quest for power.

I like to prove things wrong.

It's not an accident that successful people read more books.