If there were no mountains, humanity would be much lazier! Challenges make people hardworking!

In matters of goodness, never expect any compliment or appreciation; just do your goodness and disappear!

The beauty of a house by the lake side in the middle of wilderness can best be appreciated not by those who permanently live in the house but by the travellers passing by!

Earth can happily live without us, but we can no way live without earth!

To have infinite oceanic horizons! This is what a man needs to reach the unreachable.

It is perfectly possible that a grandfather can have a more scientific mind than his grandchildren! Societies do not always go forward! Sometimes old generations are much luckier!

If somebody tells you 'History will never forgive you,' just laugh at him! Because when the history comes, you won't be here! The threat of history never forgives you is a useless threat!