Saving our planet, lifting people out of poverty, advancing economic growth... these are one and the same fight. We must connect the dots between climate change, water scarcity, energy shortages, global health, food security and women's empowerment. Solutions to one problem must be solutions for all.
I was profoundly moved to be the first United Nations Secretary-General to attend the Peace Memorial Ceremony in Hiroshima. I also visited Nagasaki. Sadly, we know the terrible humanitarian consequences from the use of even one weapon. As long as such weapons exist, so, too, will the risks of use and proliferation.
Some might complain that nuclear disarmament is little more than a dream. But that ignores the very tangible benefits disarmament would bring for all humankind. Its success would strengthen international peace and security. It would free up vast and much-needed resources for social and economic development. It would advance the rule of law.
Throughout human history, in any great endeavour requiring the common effort of many nations and men and women everywhere, we have learned - it is only through seriousness of purpose and persistence that we ultimately carry the day. We might liken it to riding a bicycle. You stay upright and move forward so long as you keep up the momentum.
I grew up in war and saw the United Nations help my country to recover and rebuild. That experience was a big part of what led me to pursue a career in public service. As Secretary-General, I am determined to see this organization deliver tangible, meaningful results that advance peace, development and human rights.
I am disturbed by how states abuse laws on Internet access. I am concerned that surveillance programmes are becoming too aggressive. I understand that national security and criminal activity may justify some exceptional and narrowly-tailored use of surveillance. But that is all the more reason to safeguard human rights and fundamental freedoms.