The most dangerous phrase in business is 'We've always done it this way.'
I don't count my sit-ups. I only start counting when it starts hurting.
We must resist the temptation to make African art merely illustrative of theory.
Architecture is a social art; it must respond to the needs of society.
In times of change, the learners inherit the earth while the learned find themselves beautifully equipped to deal with a world that no longer exists.
Sustainability isn't a trend; it's a responsibility we owe to future generations.
今天种下的每一棵树,都是对明天的承诺。