The past is always with us, and it's always more complicated than we think.
The human heart is a complex and often contradictory thing.
The lion doesn't care about the opinions of the sheep.
顺应世间的变化，时时保持慈悲之心。
The only way to do great work is to love what you do.
数学的力量在于它简化复杂事物的能力。
The best way to ensure peace is to maintain a balance of power among the great powers.