The scientist should treasure the riddles he can't solve, not explain them away at the outset.

The scientist should treasure the riddles he can't solve, not explain them away at the outset.

The supreme good of life is vitality. And vitality is always seeping away.

One of the striking features of the form of globalisation that has now been established is that it is based on the premise that goods and even capital should be free to roam but labour must remain imprisoned within the nation state.

Social solidarity must rest instead on the sole secure basis it can have: direct responsibility of people for one another. Such responsibility can be realized through the principle that every able-bodied adult holds a position within the caring economy - the part of the economy in which people care for one another - as well as within the production system.

In a world of democracies, the most deserving basis of national differences is that the different states of the world should represent a form of moral specialisation within humanity.

At every level the greatest obstacle to transforming the world is that we lack the clarity and imagination to conceive that it could be different