He was inspired partly by the 10,000-hour rule popularized by the writer Malcolm Gladwell, which says that an extreme amount of practice is required to become exceptional in a cognitively demanding pursuit.
But leading opponents of war have argued that the terrorist attacks should not be regarded as an act of war, requiring a military response, but as an international crime, demanding legal pursuit, arrest and trial of the perpetrators, as well as diplomatic and financial penalties against the aggressors and their backers.
But in the meantime, basic decency demands pursuit of a humanitarian relief campaign.
It was there that he came face to face with Jesuits who championed a controversial gospel known as liberation theology, which demanded the pursuit of social justice for the poor by the faithful – and has been criticised by some traditionalists as a Marxist interpretation of the gospels.
We want to go beyond receiving the bare minimum of life and liberty and also demand the pursuit of happiness, go beyond ending discrimination and violence to expect and also lay claim to enjoyment and peace and good fortune.
This may be as fruitless a pursuit as demanding that every play be Shakespeare or that every novel be Tolstoy, but it's where we are.
This is the tale of how one of Britain's oldest and biggest businesses went rogue – to the point where its own pharmacists claim their working conditions threaten the safety of patients, and experts warn that the management's pursuit of demanding financial targets poses a risk to public health.
As another participant makes clear, with buses unaffordable, shopping is less a leisure pursuit, more a physically demanding chore: I walk everywhere..
"The pursuit," Holmes confessed, "became so intense, so demanding of my own emotions that it continuously threatened to get out of hand.
TWO hundred and twenty-seven years ago tomorrow, the American colonists declared their independence, demanding the inalienable right to "life, liberty and the pursuit of happiness".
